Improve Symfony Tests Performance
November 21, 2021 • Edit this Post
php symfony tests- Using more simple password hashers
- Do not use Doctrine logging by default
- Set
APP_DEBUG
tofalse
- Completely disable Xdebug
- Parallel tests execution using Paratest
- Collect coverage with
pcov
if possible - Collect coverage with
cacheDirectory
- Miscellaneous
For all the latest Symfony projects at my company we were writing unit and mostly functional tests, occasionally improving their performance, but didn't have a chance to summarize all the improvements we made to speed up the test suite.
In this article, I will show the most comprehensive list of tips and tricks to decrease tests time, resource consumption and improve their speed.
First, let's start with our baseline for one of the projects.
2285
- the total number of tests979
unit tests1306
functional tests (Symfony'sWebTestCase
, testing API endpoints)- Symfony 5.3, PHP 8.1
The whole test suite before optimizations takes: Time: 12:25.512, Memory: 551.01 MB
.
Why having a fast and reliable tests suite is important? There a lot of reasons, but 2 main are:
- The more tests suite takes to be executed, the more annoying it is for a developer
- The more resources (CPU, Memory) tests suite takes, the worse it is for CI server (it can slow down other jobs/builds) and eventually for our Planet
Let's see what we can do here.
Using more simple password hasher
Password hashers are used in Symfony to hash the raw password during persisting the User to database and to verify password validity. For production, we have to use more reliable hashing algorithms which are quite slow by their nature (Argon2, bcrypt, etc.).
While checking 1 password during login is not a big deal, imaging hashing passwords thousands of times during tests execution. This becomes a bottleneck.
Instead of using mentioned hashing algorithms, we can use md5
for test
environment and increase the speed of the test suite.
# config/packages/security.yaml for dev & prod env
security:
password_hashers:
App\Entity\User:
algorithm: argon2i
# override in config/packages/test/security.yaml for test env
security:
password_hashers:
App\Entity\User:
algorithm: md5
encode_as_base64: false
iterations: 0
Let's run phpunit
again and check the results:
vendor/bin/phpunit
# ...
Time: 05:32.496, Memory: 551.00 MB
What an improvement!
- Time: 12:25.512, Memory: 551.01 MB
+ Time: 05:32.496, Memory: 551.00 MB
It is 2.25x faster than it was before just by changing hashing function. This is one of the most valuable performance optimization that can be done in minutes, and, to be honest, I don't know why it isn't forced by big players like API-Platform or Symfony itself in their distributions. Let's try to change that and help other developers to not waste time: api-platform/docs#1472, symfony/recipes#1024.
Do not use Doctrine logging by default
After a couple of years working with the test suite with disabled Doctrine logging, we didn't experience any inconveniences. When there is an error thrown, stack trace will have a failed SQL query in the log/output anyway. So for tests execution, there is no really a need to log SQL queries to the log file, as in most cases you will need them only in case of errors, which already works as mentioned above.
Let's disable doctrine logging for the test
environment:
# config/packages/test/doctrine.yaml
doctrine:
dbal:
logging: false
Run the tests again and compare with the previous results:
- Time: 05:32.496, Memory: 551.00 MB
+ Time: 04:13.959, Memory: 547.01 MB
Such an easy change and another minute is gone. This improvement highly depends on how you use the (monolog) logger for test
environment. General tip: do not log too much for tests. For example, setting log level debug
is not necessary, and for tests you can use production-like configuration - fingercrossed
handler with action: error
.
Set APP_DEBUG
to false
It was proposed back in 2019 by @javiereguiluz, but didn't get enough popularity. Though, now Symfony's documentation mentions this improvement in a "Set-up your Test Environment" paragraph:
It is recommended to run your test with
debug
set tofalse
on your CI server, as it significantly improves test performance.
To disable debug mode, add the following line to your phpunit.xml
file:
<?xml version="1.0" encoding="UTF-8"?>
<phpunit >
<php>
<!-- ..... -->
<server name="APP_DEBUG" value="false" />
</php>
</phpunit>
Disabling debug
mode also disables clearing the cache. And if your tests don't run in a clean environment each time (for example tests are executed locally, where you always change the source files), you have to manually clear the cache each time PHPUnit
is executed.
This is how it looks like on our project inside PHPUnit
's bootstrap
file:
<?php
use Symfony\Component\Filesystem\Filesystem;
require dirname(__DIR__).'/vendor/autoload.php';
// ...
(new Filesystem())->remove([__DIR__ . '/../var/cache/test']);
echo "\nTest cache cleared\n";
We can live with this "inconvenience", especially with the benefit it gets. Ready to see the results?
- Time: 04:13.959, Memory: 547.01 MB
+ Time: 02:45.307, Memory: 473.00 MB
Besides the speed, there is one more (I think major) benefit of using APP_DEBUG=false
. Functional tests start responding with Internal Server Error
rather than with an exception message thrown from the source code.
This can be a dealbreaker in Symfony projects. I saw a couple of projects, where people used the following code:
# App\Controller\SomeController.php
throw new ConflictHttpException('There is a conflict between X and Y');
asserting in tests that response contains exactly this exception message There is a conflict between X and Y
in functional tests when APP_DEBUG=true
, while in fact the response message is The server returned a "409 Conflict".
with APP_DEBUG=false
, and test start failing after using APP_DEBUG=false
.
Using APP_DEBUG=false
with functional tests is a right way from errors/exceptions points of view and this mimics a real production environment.
Again, to save developers' time, let's try to change API-Platform distribution and Symfony's phpunit-bridge
recipe and add this behavior by default: api-platform/api-platform#2078, symfony/recipes#1025
Completely disable Xdebug
Many of us install Xdebug
for debugging purposes, adding it to the base development docker images or right to the local machine. If you use pcov
to collect a coverage or even if you don't collect coverage at all, Xdebug
can still impact a performance of the test suite, even if you use xdebug.mode=debug
but not xdebug.mode=coverage
.
So make sure to completely disable Xdebug
before running your tests:
XDEBUG_MODE=off vendor/bin/phpunit
For our project, we managed to get a great performance boost by applying this approach on development environment:
- Time: 02:45.307, Memory: 473.00 MB
+ Time: 01:47.368, Memory: 449.00 MB
There is no need to install
Xdebug
on CI if you collect coverage withpcov
, so in our case CI was not affected.
Moreover, we did the same for many other commands in our Makefile
, for example:
# Makefile
DISABLE_XDEBUG=XDEBUG_MODE=off
app-reinstall: prerequisites ## Setup application database with fixtures
$(DISABLE_XDEBUG) bin/console doctrine:database:drop --force --if-exists
$(DISABLE_XDEBUG) bin/console doctrine:database:create
$(DISABLE_XDEBUG) bin/console doctrine:schema:update --force
$(DISABLE_XDEBUG) bin/console doctrine:fixtures:load -n
Note: There are a number of OSS tools that use composer/xdebug-handler
that can automatically disable Xdebug
and re-run the process. From my point of view - this is very convenient and it should be used if possible for such tools as PHP Magic Detector, PHP-CS-Fixer, etc. Basically, for static analysis tools.
Do not use
Xdebug
for collecting code coverage unless you need apath
/branch
coverage. Usepcov
instead (explained below)
Parallel tests execution using Paratest
Every good tool has an option to be executed in parallel (to name a few: Psalm
, PHPStan
, Infection
). To get all the power from multicore processor of your local machine or CI server, make sure to run your tests in parallel as well.
Personally, I recommend using Paratest
. It is a wrapper for PHPUnit
that just works, even code coverage can be collected and combined from different threads.
If you use DB for your functional tests, you will have to set up as many DB schemas as threads you want to use in Paratest
. This library exposes a TEST_TOKEN=<int>
environment variable that can be used to determine what DB connection to use.
Imaging you run your tests with 4 threads, so you need 4 DB schemas and 4 different DB connections:
vendor/bin/paratest --processes=4 --runner=WrapperRunner
To configure Doctrine to use different connections, the following config can be used:
# config/packages/test/doctrine.yaml
parameters:
test_token: 1
doctrine:
dbal:
dbname: 'db_%env(default:test_token:TEST_TOKEN)%'
In this case, depending on TEST_TOKEN
variable, PHPUnit
will run an application connected to different databases: db_1
, db_2
, db_3
, db_4
.
Why is it needed? Because tests, executed simultaneously for the same DB, can break each other: they can rewrite or remove the same data, transactions can be time outed or locked. Thus, running tests in isolation - when each thread uses its own DB - fixes this issue.
Running a test suite with 4 threads for our project gives the following performance boost:
- Time: 01:47.368, Memory: 449.00 MB
+ Time: 00:34.256, Memory: 40.00 MB
Do you remember we started with Time: 12:25.512, Memory: 551.01 MB
?
After all the changes, it's Time: 00:34.256, Memory: 40.00 MB
! This is 21x faster than it was in the beginning.
Collect coverage with pcov
if possible
Now, let's see how we can improve the speed of the test suite when we collect coverage data. To make it more visible, let's step back and run our test suite without Paratest
, using 1 thread in PHPUnit
with Xdebug
and then pcov
as a coverage driver.
- Time: 03:49.987, Memory: 575.00 MB # Xdebug
+ Time: 02:13.209, Memory: 519.01 MB # pcov
As we can see, for this particular case pcov
is 1.72x faster than Xdebug
. Depending on your project, you can get even better results (e.g. 5x times faster)
pcov
has a comparable accuracy in coverage reports with Xdebug
, so this should be a great choice unless you need a path/branch coverage (which are not supported by pcov
).
Collect coverage with cacheDirectory
As suggested in the Paratest repository:
Beginning from
PHPUnit
9.3.4, it is strongly advised to set a coverage cache directory, see PHPUnit Changelog @ 9.3.4.

Time: 01:02.904, Memory: 478.93 MB
Generating code coverage report ... done [00:10.796]
Total time with code coverage reports generating is 1m 13s.
Now, let's add a cacheDirectory
in phpunit.xml
file:
- <coverage>
+ <coverage cacheDirectory=".coverage-cache">
and run PHPUnit
with collecting code coverage again. Here are the results:
- Time: 01:02.904, Memory: 478.93 MB
- Generating code coverage report ... done [00:10.796]
+ Time: 00:43.759, Memory: 475.70 MB
+ Generating code coverage report ... done [00:05.394]
Nice, much faster now. On a real big tests suite, we were able to decrease the time from 11 minutes to 5 minutes on CI thanks to cacheDirectory
setting.
Read more about how it works under the hood in a post by Sebastian Bergmann: https://thephp.cc/articles/caching-makes-everything-faster-right
Miscellaneous
Use dama/doctrine-test-bundle
to rollback transaction after each test
There are many ways on how to work with a database in functional tests, including setting up DB schema before each test case (on setUp()
method), truncating only changed tables after each test case and so on.
Things we should be aware of:
- We should not setup DB schema for each test. This is a one-time operation before tests are started.
- We should not insert required for application work data for each test. Examples: lookup tables, administrator user, countries and states. Basically, everything that is static and stored in the DB - should be inserted one time before tests are started. This data should be reused across all the functional tests.
When these 2 points are done, all we need to do is to restore DB to the same state that it was when a test case started. And here is when dama/doctrine-test-bundle
comes into play.
It decorates a Doctrine database connection and starts a transaction before each test then rolls it back after it. By doing a ROLLBACK
, each test leaves a database in its initial state after execution, while during the test we can do whatever we want - inserts, updates, deletes and searches.
This results in a performance boost as there is no need to rebuild the schema, import a backup SQL dump or re-insert fixtures before every testcase.
As always, results depend on your project, but here is an example of 40% performance improvement by using this bundle/approach.
Combine functional & unit tests. Prefer Unit tests
Functional tests are very powerful, as they not just test independent unit of code, but test how things work together. For example, if you are testing API endpoints, you can test the whole flow of your application: from Request
to Response
.
However, testing every single condition and line of code only by functional tests is expensive, as it requires too many slow tests.
Imagine, we have an API endpoint for getting Order details: GET /orders/{id}
. And the following business rules should apply:
Admin
can view Order detailsManager
can view Order detailsUser
who placed this Order can view Order detailsUser
who was given shared access but not placed this Order can view Order details- Any other authenticated
User
can not view Order details - Not authenticated
User
can not view Order details
API endpoint is protected by Security check:
#[IsGranted('ORDER_VIEW', object)]
public function viewOrder(Order $order) { /* ... */ }
To cover these requirements, we need to write at least 6 tests. But instead of creating 6 slow functional tests, we can create 2, just to check that action in a controller is protected by #[IsGranted]
attribute.
public function test_guest_user_can_not_view_order_details(): void
{
$order = $this->createOrder();
// send request by guest user
$this->sendRequest(Request::METHOD_GET, sprintf('/api/orders/%s', $order->getId()));
$this->assertRequestIsForbidden();
}
public function test_admin_user_can_view_order_details(): void
{
$this->logInAsAdministrator();
$order = $this->createOrder();
// send request by administrator user
$this->sendRequest(Request::METHOD_GET, sprintf('/api/orders/%s', $order->getId()));
$this->assertResponseStatusCodeSame(Response::HTTP_OK);
}
All other cases can be checked in Unit tests for Security Voter and its logic. With this approach, we know that our voter is being called during API call (functional test checks it), and all the conditions/branches are covered by fast unit tests.
To give you an idea about how fast unit tests are (from a real project discussed above):
XDEBUG_MODE=off vendor/bin/phpunit --testsuite=Unit
Time: 00:00.750, Memory: 66.01 MB
OK (979 tests, 2073 assertions)
So 979
unit tests take less than 1s
to be executed in 1 thread, while 1306
functional tests take 1m 46s
in 1 thread. For this case, unit tests are 105x times faster. While 1 functional test is being executed, we can run 100 unit tests!
Also, having more unit tests makes Mutation Testing (Infection) work much faster for your project, while functional tests slows down this process.
Credits & related articles:
- https://titouangalopin.com/posts/60edL3P43zwG6uGUiIlvPL/tips-for-a-reliable-and-fast-test-suite-with-symfony-and-doctrine
- https://codewave.eu/blog/how-to-reduce-time-symfony-integration-tests
- https://habr.com/ru/post/505736/
Find this interesting? Let's continue the conversation on Twitter.


Stella Halena
Ray White Digital Team
@stellaahaha
Redux is a state management system
What does that mean ?
state : status of your application
jQuery - DOM
Redux - not in the DOM, in one place in an object
if ($('#modal').hasClass('active')) {
showSubscribeButton();
}
checking for the current state of a modal
if ($('#modal').hasClass('active')) {
showSubscribeButton();
}
if ($('#userPanel').hasClass('loggedIn')) {
showLogOut();
}
if ($('#button').hasClass('clicked')) {
showItem();
}
checking state of 3 different elements
stateTree: {
modal: { active: true, subscribe: false }
user: { name: 'robin robins' , active: true },
};
1 vs many store (flux)
giant object - everything at a glance
persistent state across multiple components (react)
strict data changes through dispatching action
set the state on initalization
any changes - updating state (immutable)
we use the redux methods
action, reducers, store
1 way change, 1 way access
WHAT happened
dispatch an action
plain object
source of info for the store
has to have a 'TYPE'
typically defined as as string constants
separate when it gets too big
action creators
{
type: 'SELECT_USER',
}
// string constant
const SELECT_USER = 'SELECT_USER';
//action
{
type: SELECT_USER,
name: 'billi',
index: 3,
},
{
type: SELECT_USER,
name: 'robin',
index: 1,
}
function that creates action.
creates the same data shape
right keys & values
gotta type out each actions by hand (copy & paste)
typos, errors & time consuming
export function selectUser(user, index) {
return {
type: SELECT_USER,
user,
index,
}
}
export function selectDish(dish) {
return {
type: 'DISH_SELECTED',
name: dish,
};
}
HOW it happened
how the state changes
pure functions
no database / network calls
doesn't modify, returns a new array (immutable)
typically written as case and switch statement
funtion nameOfReducer (previousState, action) {
switch (action.type) {
case :
return;
case :
return;
default:
return state;
};
}
export default function(state = initialState, action) {
switch (action.type) {
case 'DISH_SELECTED':
return action.name
}
return state;
}
holds the application state
access via `getState`
update via `dispatch(action)`
1 store per application
import { createStore } from 'redux';
const store = createStore(reducers);
console.log(store.getState());
{
users: [
{ name: 'robin' , index: 0 },
{ name: 'blake', index: 1 },
{ name: 'andy' , index: 2 },
{ name: 'charlie', index: 3 },
];
active: [
{ name: 'andy' , index: 2 },
{ name: 'charlie', index: 3 },
];
}


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The Akan community consists of unique group of people who have dominated the Ivory Coast and the Ghana regions of West Africa.
Some of the prominent personalities who are members of the group include Kwameh Nkuruma, Koffi Annan, Maria Balotelli and many more.
The Akan people of Ghana name their children after the day of the week they were born. These "day names" have further meanings concerning the soul and character of the person. Middle names have considerably more variety and can refer to their birth order, twin status, or an ancestor's middle name.
Find out your Ghananian day name below:


Speech
The Education Secretary sets out her vision for character education.
Thank you for that kind introduction. It is a pleasure to be here.
And it is a pleasure to be hosting the Department for Education’s first character symposium, alongside Floreat Education and Lord O’Shaughnessy - pioneers of what excellent character education looks like.
It’s inspiring to see so many people debating this issue so passionately.
I know that Major Tim Peake has tweeted about this symposium all the way from the International Space Station - so that’s definitely a badge of honour!
As the Prime Minister said in his life chances speech just last week, our aim in politics should be: “To give every child the chance to dream big dreams, and the tools - the character, the knowledge and the confidence that will let their potential shine brightly.”
So this government has made it clear that character matters.
And, as many of you will know, the development of character and mental wellbeing are personal priorities of mine.
As a backbench MP I called for a debate on mental health in the main House of Commons chamber for the very first time and was privileged to lead that debate in 2012.
I was the first Secretary of State to give a minister specific responsibility for mental health - a role Sam Gyimah is carrying out with distinction.
And let me thank Edward Timpson, the minister in my department responsible for character, for his considerable work on this - I know you will hear from him later.
Good character is welcomed by schools, by businesses and by parents alike. It impacts both on educational outcomes and life chances, and I have seen first hand the impact it can have.
Just last week I attended an event being held by the Transformation Trust which gives disadvantaged young people the chance to participate in character-building activities which they otherwise wouldn’t have access to.
I heard from 2 young women, Camila and Rihanna, both only 18 years old, who were articulate, ambitious and accomplished.
They were the embodiment of the impact character education can have on young people.
For too long, character has been seen as ‘soft’ and ‘a nice thing to do’.
I am pleased to say that the debate is shifting and there is greater awareness than ever before of just how important this is.
I firmly believe character education prepares our young people for life in modern Britain, regardless of their background or where they grew up.
A truly one-nation government cannot accept that only some people deserve the opportunities that will help them to get on in life.
Every single child deserves that chance.
And we’re not promoting character on a whim.
Evidence clearly shows that character matters.
Carole Dweck’s work at Stanford, Angela Duckworth’s work on Character Lab, as well as the evidence collected by the Early Intervention Foundation, all point to success being closely linked with character.
This is evidence showing that developing excellent character traits in young people can help them to realise their true potential.
People often ask what we mean when we talk about character.
For me character traits are those qualities that enhance us as people: persistence, the ability to work with others, to show humility in the joy of success and resilience in the face of failure.
Character is about being self-aware, playing an active role within communities. It’s about selflessness and self-discipline as well as playing a full role in society.
It’s fair to say that’s a long list of traits!
But that goes to the very heart of this debate - there is no one clear definition of character.
There is no one easy list of boxes to tick.
We don’t want to set down rigid guidelines on this because character isn’t a one-size-fits-all concept.
It isn’t just one thing.
It’s a combination of the traits that set people apart so they can achieve their dreams.
Business leaders - big and small - tell us time and time again that character is a key component to success.
And we welcome a diverse approach to teaching character.
Our reforms over the last 6 years in education have been about liberating schools to innovate and have the freedom to deliver what really works.
We want schools to choose how best to deliver character education in ways that suit their pupils, their teachers and their communities.
We’ve heard this morning from Janet, and the inspiring work done here in Floreat to instil these traits in their pupils.
We’ve also heard from Ali about the difference the ReachOut mentoring programme has had on his life, and from Danielle - who spoke about the determination that has helped her achieve her goals both academically and in sport.
One of the other myths I’m keen to dispel is that character education, and academic attainment are mutually exclusive. Far from it.
For me, they are 2 sides of the same coin.
Consider for a moment the student who reads aloud for the first time and gets tongue tied - will they rush to do it again without encouragement?
What about another who is asked to recite times tables in front of their class and gets stuck - will they fall over themselves to repeat the exercise?
Probably not.
But with character comes the confidence and determination not to be beaten.
It’s that attitude that says “dust yourself off and try again”.
We know that some of the best schools are already prioritising good character education.
Whenever I go to visit schools - and I’ve visited my fair share - I always make a point of asking what they do to promote character, mental health and wellbeing.
And at the Department for Education my officials talk to those schools doing it well - to understand the key to their success. And the one thing I’ve heard over and over again is that the best schools embed character in everything they do - from their ethos, to their curriculum, to the extra-curricular activities they offer.
Oakthorpe Primary School in Derbyshire has developed an ethos that’s focused around reciprocity, reflection, resourcefulness and resilience.
Haywood Academy in Stoke-on-Trent offers a range of character-building activities through motivational speakers, army cadet units and theatre programmes.
I have had the pleasure of visiting the Birmingham University Free School where character education runs through everything they do, as well the Goldbeaters Primary School in London, where we launched the On the Front Foot programme with elite rugby coaches.
And also Redhill School in Stourbridge where students are encouraged to play a positive role in the life of the school and the wider community through fundraising, work experience and sports.
Pupils were invited to speak at the Conservative Party Conference and talk about why character education matters to them - and let me tell you, they received one of the biggest standing ovations of the day.
I want every single pupil to benefit from that kind of character education.
That’s why we are building the evidence base so we can develop the best approaches and make sure all schools have access to this information.
That’s why we will provide an online digital platform where teachers can share best practice about character education, evaluate new ideas and find online professional development materials - as well as sharing their own data to build a proper evidence base.
And we will look to the Character Awards as a gold standard as to what works in character education.
Today is a celebration of the excellent work already being done. To those schools whose efforts are to be applauded - thank you.
But also to the businesses who are building lasting partnerships with schools and doing their bit to further the building of character in our young people - thank you, too.
I think it’s vitally important that businesses take a role here because the character traits we instil in young people should reflect the type of workforce our modern economy wants and needs.
That includes companies like Barclays, which has developed a Life Skills programme to develop the skills young people need to increase employability, and British Gas, which is supporting the fantastic Duke of Edinburgh scheme.
We have sought, like no government before us, to bring business people into the education system.
That’s why we now have businesses sponsoring schools, becoming governors and offering work experience.
We want this relationship between business and education to continue to go from strength to strength.
That is why we will be launching, as the Prime Minister set out, a new business mentoring programme, led by the Careers and Enterprise Company.
I know their chief executive, Claudia Harris, is here today and will be leading the conversation on how we can make sure all young people develop the skills they need to thrive in the workplace.
And that’s just one of the many conversations happening today.
We want to give you the opportunity to influence our thinking on character and, ultimately, our policies.
So we’ll be asking for your views on how we can work with voluntary and charitable sector organisations to really expand this agenda.
And there are plenty of avenues for our young people to go down in the pursuit of character building.
For example, the National Citizen Service, which gives children the chance to benefit from character education no matter their background, and no matter where in the country they live.
We want every child to be able to access this, and that’s why the Prime Minister announced we’ll be expanding funding to the programme by more than a billion pounds so that 60% of 16 and 17 year olds will be able to take part.
We are keen to work with as many partners as possible and make sure that schools can access the best evidence possible.
Because, as I have said, I want excellent character education to be the norm across schools - so that every single child in every single school knows that they are getting the education they deserve and so that when they leave school, they are truly prepared for the next steps they take.
I hope you enjoy the rest of your afternoon and I look forward to seeing how we can work together to put character education to the top of the agenda and make sure it benefits all young people.
Every single child deserves the best education possible, and we owe it to children everywhere to make sure that character is at the heart of that.
Thank you.
Published: 21 January 2016


Everything you need to know about joining, which is free, you'll just need to snag a bike right before!
Don't fret though, this is PDX and there are bikes everywhere, even growing on trees!
To pick up a bike to use for the ride, and you don't have one to borrow in the Portland area, check out these awesome options.
If you just want a bike solely for this ride, you might find it easiest to get one of the Portland bike share bike's in the Biketown PDX System. To checkout locations to pickup bikes, give the Biketown Map a look..
Our ride will follow a route that is mapped out using the app Strava.
To check out the route map check out the map on Strava.
If you've got any fancy pants stuff for import of the mapping data I've exported the *.tcx and *.gpx files for you.
The following is a Google Maps Streetview of the starting location.
We are meeting in front of Pine Street Market.
The bike ride will be after workshops on Sunday.
We'll leave at 5pm, 1 hour after the workshops end.
We'll then cruise out from the initial meetup location.
We have a selection of three beer-oriented establishments we'll also be stopping at for about 10-15 minutes each. Each of these locations is currently a secret but are chosen from a list of Adron's favorite beer joints.
You can expect a wide variety of trivial knowledge (for free!) about the city of Portland to be dispensed along with some proverbial bits about tasty beer, biking, and other random information.
The ride will take about 90 minutes in total, including stops. We will end the ride at the Mission Theater at roughly 7pm.
This is super convenient because the Welcome Reception starts at 7pm at the Mission Theater! =D =D


Controls:A or Left Arrow to rotate view left. D or Right Arrow to rotate view right. Up and down arrow to rotate teapot model itself.


1998 - Cholera in Somalia
16 October 1998
Disease Outbreak Reported
The cholera season in Somalia is now approaching. It is expected to be particularly
deadly in Mogadishu this year, owing to the following factors:
- The World Food Programme/Food and Agriculture Organization (WFP/FAO) have estimated the structural food deficit to be quite large. It is expected to result in the additional movement of around 200,000 internally displaced people from Bay and other regions to Mogadishu. These people will be malnourished and obliged to live on the outskirts of Mogadishu without access to safe water.
- No international NGO is currently present in Mogadishu. Although Somali professionals have been adequately trained in cholera prevention and treatment, NGO financial support to the staff of cholera treatment centres in the past has greatly contributed to their success in combating the disease. This year, it appears very unlikely that any donor will financially support the staff of these centres.
- The United Nations Children's Fund (UNICEF) has notified termination to many staff in Mogadishu. As a result, their support to chlorination activities in the city is expected to be significantly reduced. However, UNICEF will step up the use of mass media for hygiene awareness and safe water campaigns.
- The International Committee of the Red Cross (ICRC) has withdrawn from the Mogadishu area. Its past support to cholera treatment activities in southern Mogadishu was instrumental in preventing many deaths, but it will not be available this season.
WHO currently employs a local laboratory technician and two local doctors in Somalia as
public health coordinators.
Unless the current security conditions in Mogadishu are improved, the cholera epidemic
response this season will be seriously compromised.


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{% extends "_layout.html" %} {% set active_page = "admin" %} {% block title %}Admin{% endblock %} {% block content %}
This will be a super mega awesome dashboard with lots of pretty JS graphs and stuff. Promise.
For now, here's some links to other pages:
This version will only send to people who have never been sent a reminder - so each person can only receive a single email at the moment.


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You can also describe your company briefly.In addition you might want to define each of the top menus of this site. Briefly describe what the user will find in each of these menus.
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Next:
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Guide
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Guide

Contents

Index
Essentials
LAPACK
Problems that LAPACK can Solve
Computers for which LAPACK is Suitable
LAPACK Compared with LINPACK and EISPACK
LAPACK and the BLAS
Availability of LAPACK
Commercial Use of LAPACK
Installation of LAPACK
Documentation for LAPACK
Support for LAPACK
Errata in LAPACK
Other Related Software
Susan Blackford
1999-10-01


The Italian Job
The car that made the Swinging Sixties. 16 Minis were used during production; all of them either being written off in the chase scenes or scrapped and abandoned afterwards. Three were later rescued and restored by a private collector.
- Car launched 1961
- Country of origin UK
- Total sales 5,300,000


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In essence, they are digital representations of your physcial certificates. Technically, we create a JSON that contains the certificate information, then sign and hash it, and place the hash on the Bitcoin blockchain. If you'd like to learn more about their architecture, please check out the Blockchain Certificates Project website .


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When you work with us, You are part of a team of committed collaborators,All aspects of pf our software development process are intergrated interactive and agile Our approach unifies design,development and management to create exceptional products Before we sign a contract or write a line of code, Our teamwill spend the neccessary time needed to understand you product vision The outcome of this scoping is a proposal or high-level statement of work. based on requirements, We can provcide a compelte offering or just the pieces you need Then we help translate them into effective and elegant solutions Our design practice offers a full arge of serives All engineers are fluent in the latest enterprise planning and development is interactive, this is becauseABOUT US
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we are constantly coding and testing the products we build are
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I was enrolled in the Information Technology program in Fall 2019 and have
graduated in 2021.
I am looking to succeed in a stimulating and challenging environment, building the success of
the company while I experience advancement opportunities. I am eager to use my strong customer
service experience and communication skills to reach my career goals. I am keen to develop new
skills to complement my studies and to work with a team that will benefit my work experience.
My hobbies include playing video games, watching movies, eating, and working on personal
projects.
I enjoy watching Formula 1 and basketball (NBA).
I work with the UCLoL club and its executives by creating a lot of their graphics and materials such as the membership card, the logo, and their posters.
Capstone Project for my final year at SAIT. I worked with a team of individuals who has developed and created a web application for our client that functions as a website and mobile application for our client and their customers to view. We used Bootstrap Vue, VueX, Laravel PHP, and MySQL to develop the front-end and back-end.


Beta-version Functions¶
This python module (beta_version) contains functions that have been used in research work but yet with proper documentatoins and interface.
-
beta_version.
solve_uref_both_bc
(tstamp, zmum, FAWA_cos, ylat, ephalf2, Delta_PT, zm_PT, Input_B0, Input_B1, use_real_Data=True, plot_all_ref_quan=False)[source]¶ Compute equivalent latitude and wave activity on a barotropic sphere.
Parameters: - tstamp (string) – Time stamp of the snapshot of the field.
- znum (ndarray) – Zonal mean wind.
- FAWA_cos (ndarray) – Zonal mean finite-amplitude wave activity.
- ylat (sequence or array_like) – 1-d numpy array of latitude (in degree) with equal spacing in ascending order; dimension = nlat.
- ephalf2 (ndarray) – Epsilon in Nakamura and Solomon (2010).
- Delta_PT (ndarray) – Delta Theta in Nakamura and Solomon (2010); upper-boundary conditions.
- zm_PT (ndarray) – Zonal mean potential temperature.
- Input_B0 (sequence or array_like) – Zonal-mean surface wave activity for the lowest layer (k=0). Part of the lower-boundary condition.
- Input_B1 (sequence or array_like) – Zonal-mean surface wave activity for the second lowest layer (k=1). Part of the lower-boundary condition.
- use_real_Data (boolean) – Whether to use input data to compute the reference states. By detault True. If false, randomly generated arrays will be used.
- plot_all_ref_quan (boolean) – Whether to plot the solved reference states using matplotlib library. By default False. For debugging.
Returns: - u_MassCorr_regular_noslip (ndarray) – 2-d numpy array of mass correction Delta u in NS10 with no-slip lower boundary conditions; dimension = (kmax,nlat).
- u_Ref_regular_noslip (ndarray) – 2-d numpy array of zonal wind reference state u_ref in NS10 with no-slip lower boundary conditions; dimension = (kmax,nlat).
- T_MassCorr_regular_noslip (ndarray) – 2-d numpy array of adjustment in reference temperature Delta T in NS10 with no-slip lower boundary conditions; dimension = (kmax,nlat).
- T_Ref_regular_noslip (ndarray) – 2-d numpy array of adjustment in reference temperature T_ref in NS10 with no-slip lower boundary conditions; dimension = (kmax,nlat).
- u_MassCorr_regular_adiab (ndarray) – 2-d numpy array of mass correction Delta u in NS10 with adiabatic lower boundary conditions; dimension = (kmax,nlat).
- u_Ref_regular_adiab (ndarray) – 2-d numpy array of zonal wind reference state u_ref in NS10 with adiabatic lower boundary conditions; dimension = (kmax,nlat).
- T_MassCorr_regular_adiab (ndarray) – 2-d numpy array of adjustment in reference temperature Delta T in NS10 with adiabatic lower boundary conditions; dimension = (kmax,nlat).
- T_Ref_regular_adiab (ndarray) – 2-d numpy array of adjustment in reference temperature T_ref in NS10 with adiabatic lower boundary conditions; dimension = (kmax,nlat).


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Hostile environment for those seeking support
by LettersDisabled people face an uphill struggle to apply for the help they are entitled to, writes Sue Fallows, while Mo Hutchison decribes her security ordeal at a PIP tribunal
Rob Palk’s article (Now I fear the state more than poverty, 26 October) sadly reflects the experience of many who are not white, wealthy and healthy. The move from disability living allowance (DLA) to personal independence payment (PIP) for people of working age is in essence an extension of this government’s hostile environment to include those who need support in their daily lives.
In my work I regularly help people complete applications for PIP and also attendance allowance (for those of state pension age). One aspect that commonly occurs is that people make adjustments in their lives in order to manage, but do not always see these as indicators that they could use some help, so do not make them explicit in their application.
One point that Palk made was that, at his assessment, he tried to be calm and friendly, and not display his problems. The assessor judges on what they see (and can make assumptions based on that), so such efforts can, sadly, backfire.
There are many organisations and charities that offer help with form-filling and appeals. Citizens Advice is one, and offers fully confidential advice and support.
Sue Fallows
Gittisham, Devon
• To attend my PIP tribunal I had to pass through airport-type security. A guard checked my bag, lurking within which was my deadly knitting (a jumper for my grandson). This was confiscated and I was given a receipt. Then a bottle of water was discovered, cleverly concealed on the top of my bag. It could only be returned to me if I took a large swig, and presumably did not keel over having ingested some noxious substance. It took me quite a while to recover from all this.
It also took a while to recover my knitting – mercifully intact.
Mo Hutchison
Maidstone, Kent
• Join the debate – email<EMAIL_ADDRESS>• Read more Guardian letters – click here to visit gu.com/letters
• Do you have a photo you’d like to share with Guardian readers? Click here to upload it and we’ll publish the best submissions in the letters spread of our print edition


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@bind_hass
def clean_spot(hass, entity_id=None):
Tell all or specified vacuum to perform a spot clean-up.
data = {ATTR_ENTITY_ID: entity_id} if entity_id else None
hass.services.call(DOMAIN, SERVICE_CLEAN_SPOT, data)
@bind_hass
def return_to_base(hass, entity_id=None):
@bind_hass
def clean_spot(hass, entity_id=None):
Tell all or specified vacuum to perform a spot clean-up.
hass.add_job(async_clean_spot, hass, entity_id)
@callback
@bind_hass


The Volume of Simple Polyhedron
问题描述 :
Simple Polyhedron is the polyhedron which has a genus of zero(It hasn’t to be a convex polyhedron).
Given a convex polyhedron with n planes, there are m points on each plane.
If there is a hole on some plane, then the position of the hole will be given as a point or several points.
Looking from the outside to the inside, the order of the points is clockwise.
If there are holes:
The points on odd layers will be given in counterclockwise, and the points on the even layers will be given in clockwise. The points will be given in the topological order of the layers from the outside to the inside.
Your task is to calculate the volume of the polyhedron.
Given a convex polyhedron with n planes, there are m points on each plane.
If there is a hole on some plane, then the position of the hole will be given as a point or several points.
Looking from the outside to the inside, the order of the points is clockwise.
If there are holes:
The points on odd layers will be given in counterclockwise, and the points on the even layers will be given in clockwise. The points will be given in the topological order of the layers from the outside to the inside.
Your task is to calculate the volume of the polyhedron.
输入:
Multiple test cases.
Each case begins with an integer n (4<=n<=20), which is the number of planes.
There will be n blocks following, each block describes a plane.
Every block begins with an integer m, which is the number of the points on the plane.
Each of the following m lines contains 3 integers, which are the coordinate of the point on the plane.
Each case begins with an integer n (4<=n<=20), which is the number of planes.
There will be n blocks following, each block describes a plane.
Every block begins with an integer m, which is the number of the points on the plane.
Each of the following m lines contains 3 integers, which are the coordinate of the point on the plane.
Input ends with n=0.
输出:
Multiple test cases.
Each case begins with an integer n (4<=n<=20), which is the number of planes.
There will be n blocks following, each block describes a plane.
Every block begins with an integer m, which is the number of the points on the plane.
Each of the following m lines contains 3 integers, which are the coordinate of the point on the plane.
Each case begins with an integer n (4<=n<=20), which is the number of planes.
There will be n blocks following, each block describes a plane.
Every block begins with an integer m, which is the number of the points on the plane.
Each of the following m lines contains 3 integers, which are the coordinate of the point on the plane.
Input ends with n=0.
样例输入:
7 3 0 0 0 0 2 0 3 0 0 3 1 0 1 2 0 1 1 1 1 3 0 0 0 0 0 3 0 2 0 3 1 0 1 1 1 1 1 0 2 3 3 0 0 0 2 0 0 0 3 3 1 1 1 2 0 1 1 0 2 6 0 0 0 3 0 0 0 0 3 1 0 1 1 0 2 2 0 1 0
样例输出:
2.8333
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感觉你可能会因赞美而上，所以我无耻跟上。
感觉你可能会因赞美而上，所以我无耻跟上。
感觉你可能会因赞美而上，所以我无耻跟上。
什么破题，题意好难懂啊
学习了
有点意思
感觉这里的评分标准没啥作用阿，反而显得显得赘余，还不如直接去掉好了。
对，还是这种实现比较好理解。虽然效率有点低
你指的哪个问题？
图像处理那题解题报告在哪儿呢？
学算法中的数据结构学到一定程度会乐此不疲的，比如其中的2－3树，类似的红黑树，我甚至可以自己写个逻辑文件系统结构来。
为什么暴力求解方法循环到sqrt(n) 就可以了呢
第二个方法挺不错。NewHead代表新的头节点，通过递归找到最后一个节点之后，就把这个节点赋给NewHead，然后一直返回返回，中途这个值是没有变化的，一边返回一边把相应的指针方向颠倒，最后结束时返回新的头节点到主函数。
感谢~速度真快，我很喜欢这个网站，从基础看起。
已更正。
隐藏最深的bug是(start+end)/2有可能上溢
第36行，struct node **head_ref，怎么理解，那个函数感觉不是很懂啊！？？弱渣求助


LARA CROFT: TOMB RAIDER A film review by Steve Rhodes Copyright 2001 Steve Rhodes RATING (0 TO ****): * 1/2
So what is the value of a video game that can only be watched? Especially one with long patches of leaden and ridiculous dialog such as, "My ignorance amuses me." In the case of LARA CROFT: TOMB RAIDER, a non-interactive video game released on celluloid, the value was almost fifty million dollars in a single weekend. The secret of this movie, which speaks directly to our inner (12-year-old) child, was summarized succinctly by my appropriately aged son. He says that its star, Angelina Jolie, is "hell a hot."
The plot involves a special event that occurs when all of the planets align, which, we are told, only happens every 5,000 years. (Hmm, does that mean the studio will spare us a sequel until the year 7001? We're probably not going to be that lucky.) Lara Croft (Jolie) is given a mission by her dead father, played by Jolie's real-life father, Jon Voight. Among the movie's "memorable" moments is an attack sequence that looks like something from THE PLANET OF THE EASILY BROKEN STONE APES.
The convoluted story is unimportant since the movie has only two modes, killing people with guns, feet and fists and killing time with dopey dialog.  Even when she is unarmed, she is more than a match for over a dozen hardened warriors, each armed with sleek machine guns.
"Lara's overrated," one of the characters remarks. Boy, I'd say. Save yourself the money, and go watch a neighborhood kid play one of the Lara Croft video games. That way, when you quickly get bored and leave, you'll have saved yourself time and money.
LARA CROFT: TOMB RAIDER runs a long 1:40. It is rated PG-13 for action violence and some sensuality and would be acceptable for kids around 9 and up.
My son Jeffrey, age 12, gave the movie ****, saying the action was great and the plot was pretty good.
The film is playing in nationwide release now in the United States. In the Silicon Valley, it is showing at the AMC and the Century theaters.
Web: http://www.InternetReviews.com Email<EMAIL_ADDRESS>Want free reviews and weekly movie and video recommendations via Email? Just send me a letter with the word "subscribe" in the subject line.
========== X-RAMR-ID: 28790 X-RT-AuthorID: 1271 X-RT-TitleID: 1105256 X-RT-RatingText: 1.5/4
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
Broken URLs inthe reviews are the responsibility of the author.
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Related links: index of all rec.arts.movies.reviews reviews


{{session_name}} (build: {{build_number}}, tag: {{session_tag}}) | start: {{session_start}} | end: {% if is_history %} {{session_end}} {% else %} [in progress] {% endif %}
Total coverage for all files
Coverage by source
| Name | Module | Executable Count | Executed Count | Coverage % | {% for f in file_details_list %}
|---|---|---|---|---|
| {{f.filename}} | {{f.module}} | {{f.executable}} | {{f.executed}} | {{f.percent_executed}}% |
Coverage by template
| Name | Module | Executable Count | Executed Count | Coverage % | {% for f in template_details_list %}
|---|---|---|---|---|
| {{f.filename}} | {{f.module}} | {{f.executable}} | {{f.executed}} | {{f.percent_executed}}% |
Covered Modules
| Module | Sources Count | Total Executable | Total Executed | Coverage % | {% for t in covered_modules %}
|---|---|---|---|---|
| {{t.name}} | {{t.files_count}} | {{t.total_executable}} | {{t.total_executed}} | {{t.total_coverage}}% |
Covered Routes
| Route | Visited | {% for t in covered_routes_list %}
|---|---|
| {{t.route}} | {{t.visited}} |
Call Timeline (sources in execution order)
| Source | Line | Send Time | Custom Value | {% for te in timeline_entries %}
|---|---|---|---|
| {{te.filename}} | {{te.line}} | {{te.send_time}} | {{te.custom_value}} |


Project Zeus is composed of software and hardware. The purpose of this Capstone Project is to provide an alternative source of electricity.
The hardwares are road humps, lamp post and a CCTV camera. The road humps will be the one responsible harvesting the electricity through the passing cars and it will be stored in a battery. The harvested electricity will be distributed to the lamp post and CCTV camera.
The software is the central website that will monitor the harvesting and distribution of the electricity. It will notify the user if the battery is full, live streaming for the CCTV camera and data analytics for data mining.
Duration: January 2018 - April 2018
Front-End: Bootstrap, HTML5, CSS, JavaScript, jQuery
Back-End: PHP, Python, AJAX
Database: MySQL
Designation: Lead Developer
This project is from my past subject Systems Analysis and Design.
The purpose of the study is to develop a Jail Management System for Makati City Jail to monitor their prisoners efficiently and have their reports instantly, effectively as and when required.
The system has 2 level of users:
• Super Administrator
• Administrator
The Super Administrator will be held responsible and have all the privileged as an administrator of the system. They can activate and deactivate Administrators and can accept requests as well.
The Administrator have limited privileged, they can only monitor prisoner's data and cannot handle another administrator.
The Overview of the system is just a basic Create - Read/Retrieve - Update - Delete or CRUD, build in PHP. It has a Dashboard of data analytics, management of admin users, management of prisoner's details and history logs of administrators.
Duration: January 2017 - March 2017
Front-End: HTML5, CSS, JavaScript, jQuery
Back-End: PHP
Database: MySQL
Designation: Lead Developer


Legend
User Guide
To inject/change the stimuli into neurons, use the left panel to locate the neurons and adjust the scrollable bar to set the input magnitude
Play button initiates the simulation with user provided stimuli/ablation configurations. You can pause the stimulation anytime by clicking the pause button
Stop button stops the simulation and resets the graph, but preserves the input stimuli parameters as well as any ablated neurons
Reset button completely resets all the parameters as well as the graph. Use this to start a fresh new simulation
To ablate particular neuron, click on either the neuron label on the left panel or the node on the graph while holding down the Shift key
Use the clickable time bar during the simulation to freely review the dynamics
You can save particular stimulation/ablation configuration on the left panel by entering the name and pressing SAVE button. The saved presets can then be loaded from LOAD drop-down menu


This page tracks the new paper links made to my list of RT 2006 papers.
Page maintained by Ke-Sen Huang. If you have additions or changes, send an e-mail.


Home
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My interests
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my addiction
The squad
Contact Adi
Contact Adi
Feel free to email me for anything or to just say hello!
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Buffalo Wild Wings employee killed in chemical incident in Massachusetts restaurant
by APBURLINGTON, Massachusetts -- Massachusetts police say one person has died and eight others have been hospitalized following a chemical incident at a Buffalo Wild Wings.
WHDH-TV reports officials responded to reports of a chemical reaction in the kitchen area of the restaurant in Burlington on Thursday where they found a male employee suffering from nausea.
Burlington police say in a release they believe that the employee had breathed in fumes from the cleaning agent.
The employee was taken to Lahey Hospital where he was later pronounced dead.
Police evacuated the restaurant and are urging anyone who was inside at the time and believes they may be impacted to seek immediate medical treatment.
The cause of the chemical incident remains under investigation.
A Buffalo Wild Wings spokesperson released the following statement:
"We are shocked and saddened to learn of this horrific accident at our franchise-owned sports bar and are working closely with our franchisee and the authorities while they conduct an investigation.
Because the investigation is ongoing, we are unable to share any additional comment at this time. Any further questions will need to be referred to the local authorities."


Simple Beer Service
Dashboard
The SBS Story
Build Your Own
Simple Beer Service
Beer = Good,
Streaming Beer = Better!
#simplebeerservice Tweets
Beer Flow
Ambient Sound


Class GaugePointer
Represents a pointer of gauge.
Namespace: FastReport.Gauge
Assembly: FastReport.OpenSource.dll
Syntax
public class GaugePointer : Component
Constructors
GaugePointer(GaugeObject)
Initializes a new instance of the GaugePointer class.
Declaration
public GaugePointer(GaugeObject parent)
Parameters
| Type | Name | Description |
|---|---|---|
| GaugeObject | parent | The parent gauge object. |
Properties
BorderColor
Gets or sets the border color of a pointer.
Declaration
public Color BorderColor { get; set; }
Property Value
| Type | Description |
|---|---|
| Color |
BorderWidth
Gets or sets the border width of a pointer.
Declaration
public float BorderWidth { get; set; }
Property Value
| Type | Description |
|---|---|
| System.Single |
Fill
Gets or sets the color of a pointer.
Declaration
public FillBase Fill { get; set; }
Property Value
| Type | Description |
|---|---|
| FillBase |
Parent
Gets or sets the parent gauge object.
Declaration
public GaugeObject Parent { get; set; }
Property Value
| Type | Description |
|---|---|
| GaugeObject |
Methods
Assign(GaugePointer)
Copies the contents of another GaugePointer.
Declaration
public virtual void Assign(GaugePointer src)
Parameters
| Type | Name | Description |
|---|---|---|
| GaugePointer | src | The GaugePointer instance to copy the contents from. |
Draw(FRPaintEventArgs)
Draws the gauge pointer.
Declaration
public virtual void Draw(FRPaintEventArgs e)
Parameters
| Type | Name | Description |
|---|---|---|
| FRPaintEventArgs | e | Draw event arguments. |
Serialize(FRWriter, String, GaugePointer)
Serializes the gauge pointer.
Declaration
public virtual void Serialize(FRWriter writer, string prefix, GaugePointer diff)
Parameters
| Type | Name | Description |
|---|---|---|
| FRWriter | writer | Writer object. |
| System.String | prefix | Gauge pointer property name. |
| GaugePointer | diff | Another GaugePointer to compare with. |
Remarks
This method is for internal use only.


Hope to process the day’s happenings later, meanwhile just a snapshot of my twitter-stream notes. My own highlights certainly include Steve Pacala’s fantastic plenary session in receiving the MacArthur award, and Mark Urban’s crystal clear presentation on “climate collisions.” I thought I was less tolerant of data-free models with arbitrary assumptions these days, but somehow Mark just swept those concerns away. In pointing out really fundamental concepts, such details just aren’t so important.
My twitter-notes below: note the statistical overview of the conference, quotes from the plenary, links to some papers I hope to look over soon, and the amazing images from Arkive.
cboettig #ESA11 theory mixer was packed. So many brilliant people so little space. Theorists know how to run buisness meetings - mixer was the meetin
NEONInc The average age of a NEON user is shrinking, as evidenced by the fascination of today’s visitor.https://t.co/07VZneQ #ESA
cboettig See Allesina’s results on coexistence of competitor networks in the recent PNAS article https://bit.ly/oXTVIU#esa11
cboettig #esa11 Stefano Allesina predicts coexistence of competitive networks from pairwise interactions that are either deterministic or random
cboettig Wow, great time talking to the @NEONInc folks at #esa11; where did the time go? Check out their poster session 4:30-6:30 tonight!
_inundata DataONE best practices from #esa11https://t.co/NIC2QyY #openscience
cboettig Urban shows vivdly how variation in dispersal rates during climate change results in population “collisions” & resulting extinction #esa11
cboettig Mark Urban species interaction ignored in 92% of species response to climate change studies. #esa11
cboettig Enjoying a talk in education pedagogy & faculty development. Everyone should check out at least one of the >200 edu talks at #esa11
cboettig Matt compares coliniz vs in situ speciation of island anoles. Colinization at any rate obscures pattern of phylo diversity w area #esa11
cboettig Matt helmus builds model of phylogenetic attraction or repulsion to ask how diff patterns change species-area curves #esa11
cboettig Have images of endangered (global redlist) species? check out Arkive’s most wanted list and get involved: https://bit.ly/cvgkbp #esa11
cboettig Totally loving the arkive.org session, presenter is excellent, good disc. of resuse. Check out its flickr group https://bit.ly/oi8aMC #esa11
cboettig https://Arkive.org world’s largest free database of images and video #esa11 spice up your talks and course material with amazing images
cboettig Hal Caswell asks: how about dealing with the processed data? Reproducing from raw data ain’t trivial #esa11. Carley ans: saving the workflow
cboettig .@carlystrasser gives great advice on best practices that can easily be implemented by any researcher in standard spreadsheets #esa11
cboettig Data management session has a bit too much “how” and not enough “why.” Where are examples of these steps leading to better science? #esa11
cboettig RT @rOpenSci: What do you want to see in #rstatspackages to integrate #opensource data with R? Tell us at https://bit.ly/os7OBm #ESA11
cboettig RT @megritude “Young ecologists, you face…a litany of existential crises. When I was a kid, this field was a BLAST!” Pacala #ESA11
recology_ NewPost (#ESA11) rOpenSci: a collaborative effort to develop R-based tools for facilitating Open Science https://bit.ly/nbQ3Zn #rstats
cboettig “Everyone believes the data except the collector. No one believes the model except the modeller” - Pacala shares old adage #esa11
cboettig Pacala encourages ecologists to diversify research MT @jessicablois: “reduce associative mating and increase dispersal” #ESA11
cboettig Pacala calls all of us to reserve at least part of our careers for working on enviro crisis - social contract. #esa11
cboettig Never has so much been asked of so little knowledge… but we must make predictions on the best avail science - Pacala #esa11
DoctorZen Whoa. Pacala is saying the demands on ecology for predictions could outstrip the ability to get evidence. #esa11
cboettig RT @carlystrasser: Data Management Plan tool demo today at #ESA11 SS3- 10am. Plus tips on #metadata, best practices, and example DMPs
cboettig .@JacquelynGill my thoughts exactly. Hmm… Wonder if there’ll be a tweetup at #ESA11?
cboettig Arrived in Austin, check. Badge & textbook-sized program, check. Now walking past Darwin’s Pub. Hello #ESA11, this gonna be good
cboettig From @ethanwhite: tips for navigating #ESA11 https://bit.ly/oXysK1. What’s your strategy?
cboettig A statistical overview of what will be going on at the #ESA11 conference in Austin: https://bit.ly/nRjJtR
cboettig Heading to #ESA11. Excited to be speaking in conservation, policy & theory section where cool math meets real-world problems


Instruments: Alto Saxophone, Tenor Saxophone, Soprano Saxophone
Current Bands:SJZ High School All Stars Band, Bellarmine College Preparatory Jazz Band
Former Bands:SJW Giant Steps Big Band, Kennedy Middle School Jazz Band
2019 Team 254 Software Release:GitHub Repository2019 Team 254 Behind the Bumpers Interview:YouTube Video2019 Team 254 First Updates Now FRC Deep Dive Interview: Parts 1, 2, and 3 on YouTube


This is a rewrite of the Vyper Eth 2.0 deposit contract to Solidity.
The original motivation was to run the SMTChecker and the new Yul IR generator option (--ir
) in the compiler.
As of June 2020, version r1
of the Solidity deposit contract has been verified and is considered for adoption.
See this blog post for more information.
In August 2020, version r2
was released with metadata modifications and relicensed to CC0-1.0. Afterward, this contract has been ported back to from axic/eth2-deposit-contract
to this repository and replaced the Vyper deposit contract.
In the eth2.0-specs
directory run:
make compile_deposit_contract
The following parameters were used to generate the bytecode for the DepositContract
available in this repository:
DepositContract
v0.6.11+commit.5ef660b1
Yes
with 5000000
runs--metadata-literal
(to verify metadata hash)solc --optimize --optimize-runs 5000000 --metadata-literal --bin deposit_contract.sol
eth2.0-specs
directory run make install_deposit_contract_web3_tester
to install the tools needed (make sure to have Python 3.7 and pip installed).eth2.0-specs
directory run make test_deposit_contract_web3_tests
to execute the tests.dapp
tests:Install the latest version of dapp
by following the instructions at dapp.tools. Then in the eth2.0-specs
directory run:
make test_deposit_contract
SSZ SimpleSerialize


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The word sustain from the Latin sustinere (sus, from below and tenere, to hold), to keep in existence or maintain, implies long-term support or permanence. As it pertains to agriculture, sustainable describes farming systems that are capable of maintaining their productivity and usefulness to society indefinitely. Such systems must be resource-conserving, socially supportive, commercially competitive, and environmentally sound. Sustainable agriculture was addressed by Congress in the 1990 Farm Bill and the Food, Agriculture, Conservation, and Trade Act of 1990 (FACTA). Under that law, the term sustainable agriculture means an integrated system of plant and animal production practices having a site-specific application that will, over the long term:
Consumers are increasingly demanding on the ethical dimension of food quality. This relates to the process of production and trade and its broad impacts on society and the environment. It includes a wide range of social, environmental or cultural issues such as the treatment of workers, a fair return to producers, environmental impacts and animal welfare. Guidelines about what specific practices meet long-term environmental, economic and social goals and constitute sustainable agriculture is still under debate. However, a handful of groups have attempted to develop standards and/or provide certification services based upon their own guidelines.


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A junior faculty member emailed me recently with the following question:
Do you have any advice on best practices for training students who are new to programming, and at the same time building a usable product? I do a lot of programming myself, but I’ve usually run as a solo operator, and I haven’t used any formal methodology — I just get an idea of the problem and gradually build up and test the pieces needed to solve it. But this project is well beyond the students’ current skill level, and we also need a way to coordinate work by a number of students. So I’m thinking I should use some (semi-?)formalized approach to break the work down into manageable pieces.
After a few minutes of scribbling, I had listed almost 20 practices employed by my research group, which is way too many to implement all at once. So here are my top five recommendations for bootstrapping a student and research-oriented software development team.
1. Use git and GitHub.
For team-based development of software of any complexity (and, by definition, research software is complex), version control is a fundamental requirement. I’ve tried all the major version control systems and cloud-based hosting over the years, and I believe the best choice at present is git and GitHub. While I prefer development in the open, educational accounts are provided with 5 free private repos, so you can develop in stealth mode if you must. While git and GitHub have a learning curve, I recommend you suffer through it; you will almost certainly have a net positive return on investment.
2. Two meetings a week (Mon-Thu or Tue-Fri).
The simplest way to increase development velocity by 50% is to have two meetings a week, not one. With weekly meetings, students will typically wait at least three days before beginning work on their tasks. With two weekly meetings, they will only wait a day or so before starting work. Two meetings a week also forces you as project manager to break the work down into significantly smaller pieces, which helps everything. If a team member can’t get to the meeting occasionally, skype meetings or google hangouts can work well. If a student doesn’t want to meet twice a week (for whatever reason), then maybe they aren’t committed enough to be an effective member of the team. Note that it is very easy for a student to be a net negative on a project.
3. Enforce coding standards.
Creating high quality code is something you will struggle with indefinitely. For bootstrapping, the quality assurance technique with the most bang for the buck is to enforce a coding standard. To do this, you must specify a standard as well as a tool to find violations. For Python, try PyLint. For Java, try Checkstyle. For Ruby, try Rubocop. A coding standard will catch some basic bad practices and by providing a consistent look-and-feel, will make the code significantly more maintainable and readable over time. And, it adds almost no overhead to development.
4. Write tests.
The reason to require beginning programmers to write tests is not to verify that the code works (that is typically beyond their skill level), but rather that it helps students to: (1) write APIs to allow testing, which will significantly improve the design, (2) generate executable documentation on how the code works, and (3) feel more confident about making changes, as tests will often catch regressions.
5. Eat your own dogfood.
None of the above bootstrapping tips will work well unless you are actively involved in development, writing your share of code, and practicing all of the above yourself. If you lead by example, if you take on your own share of programming tasks at each meeting, you will help them better when they run into problems, you will be more sympathetic when they run into problems, and you will also naturally start to refine and extend these practices.


| Schools {Lahman} | R Documentation |
Information on schools players attended, by school
data(Schools)
A data frame with 1207 observations on the following 5 variables.
schoolID
school ID code
name_full
school name
city
city where school is located
state
state where school's city is located
country
country where school is located
Lahman, S. (2021) Lahman's Baseball Database, 1871-2020, 2020 version, http://www.seanlahman.com/baseball-archive/statistics/
require("dplyr") # How many different schools are listed in each state? table(Schools$state) # How many different schools are listed in each country? table(Schools$country) # Top 20 schools schoolInfo <- Schools %>% select(-country) schoolCount <- CollegePlaying %>% group_by(schoolID) %>% summarise(players = length(schoolID)) %>% left_join(schoolInfo, by = "schoolID") %>% arrange(desc(players)) head(schoolCount, 20) # sum counts by state schoolStates <- schoolCount %>% group_by(state) %>% summarise(players = sum(players), schools = length(state)) str(schoolStates) summary(schoolStates)


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Azure Front Door with Custom Domain and HTTPS
Azure-Samples/azure-cli-samples/azure-front-door/deploy-custom-domain


Select the most important colors in the image. To select a color, click on a color field then on click the image.
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Add color
The 4 inch gauge is the number of horizontal and vertical stitches in a 4 by 4 inch swatch.
Pattern width:
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Generate Pattern


GeeCOINS!
How to win?
Mine as many GEECOINS as possible!
There are many ways to gather your GEECOINS:
- talk to sponsors they are equipped with their GEECOIN set at the beginning of every conference day.
- participate and engage in conference talks. Speakers will have special White GEECOINS which are worth 10 times
more than standard ones.
- check under your chair - one might be hidden there :)
Prizes
The official announcement of the results will be announced at the end of the conference.
The prizes: Lego Mindstorms set, Arduino set and Rasberry Pi.
What are GEECOINS?
There are three types available:
- Yellow GEECOIN – the most popular and widely available GEECOIN. Get as many of them as possible to win the
competition. Every yellow GEECOIN adds 1 to your overall GEECOIN count.
- White GEECOIN – to get them you need to participate in conference talks and be noticed by a speaker. The more
active you are – the more chances you have to get your white GEECOIN. Every white GEECOIN adds 10 to your
overall GEECOINS count.
- Black GEECOIN – this is a „wild card”. These are totally rare, there is only a few of them available. Black
GEECOIN lets you advance one place up in final ranking – no matter how many (or few) GECOINS you already have.
Black GEECOIN does not add „1” to your overall GEECOINS count.
GEECOIN mining camp
Visit GeeCON afterparty and its “Mining Camp” to get even more GEECOINS!
Get ready to answer questions served by our team. To take part you will have to bet your GEECOINS (as many of them as
you like). If your answer is right you take home twice as much, if it’s not we are taking everything you’ve bet.
Each participant can bet only once.
Organizers, partners and sponsors are excluded from competition.
Don’t worry guys, you are special anyway:)


| Modifier and Type | Method and Description |
|---|---|
MediaPipeline |
KurentoClient.createMediaPipeline()
Creates a new
MediaPipeline in the media server. |
MediaPipeline |
KurentoClient.createMediaPipeline(Properties properties)
Creates a new
MediaPipeline in the media server. |
MediaPipeline |
KurentoClient.createMediaPipeline(Transaction tx) |
MediaPipeline |
KurentoClient.createMediaPipeline(Transaction tx,
Properties properties) |
MediaPipeline |
MediaObject.getMediaPipeline()
Get
MediaPipeline to which this MediaObject belongs. |
| Modifier and Type | Method and Description |
|---|---|
TFuture<MediaPipeline> |
MediaObject.getMediaPipeline(Transaction tx)
Get
MediaPipeline to which this MediaObject belongs. |
List<MediaPipeline> |
ServerManager.getPipelines()
Get All the pipelines available in the server
|
TFuture<List<MediaPipeline>> |
ServerManager.getPipelines(Transaction tx)
Get All the pipelines available in the server
|
| Modifier and Type | Method and Description |
|---|---|
void |
KurentoClient.createMediaPipeline(Continuation<MediaPipeline> cont)
Creates a new
MediaPipeline in the media server. |
void |
KurentoClient.createMediaPipeline(Properties properties,
Continuation<MediaPipeline> cont)
Creates a new
MediaPipeline in the media server. |
void |
MediaObject.getMediaPipeline(Continuation<MediaPipeline> cont)
Get
MediaPipeline to which this MediaObject belongs. |
void |
ServerManager.getPipelines(Continuation<List<MediaPipeline>> cont)
Get All the pipelines available in the server
|
| Constructor and Description |
|---|
Builder(MediaPipeline mediaPipeline)
Creates a Builder for HttpPostEndpoint
|
Builder(MediaPipeline mediaPipeline)
Creates a Builder for RtpEndpoint
|
Builder(MediaPipeline mediaPipeline)
Creates a Builder for Dispatcher
|
Builder(MediaPipeline mediaPipeline)
Creates a Builder for WebRtcEndpoint
|
Builder(MediaPipeline mediaPipeline)
Creates a Builder for Mixer
|
Builder(MediaPipeline mediaPipeline)
Creates a Builder for DispatcherOneToMany
|
Builder(MediaPipeline mediaPipeline)
Creates a Builder for ImageOverlayFilter
|
Builder(MediaPipeline mediaPipeline)
Creates a Builder for Composite
|
Builder(MediaPipeline mediaPipeline)
Creates a Builder for FaceOverlayFilter
|
Builder(MediaPipeline mediaPipeline)
Creates a Builder for PassThrough
|
Builder(MediaPipeline mediaPipeline)
Creates a Builder for AlphaBlending
|
Builder(MediaPipeline mediaPipeline)
Creates a Builder for ZBarFilter
|
Builder(MediaPipeline mediaPipeline,
String uri)
Creates a Builder for PlayerEndpoint
|
Builder(MediaPipeline mediaPipeline,
String command)
Creates a Builder for GStreamerFilter
|
Builder(MediaPipeline mediaPipeline,
String uri)
Creates a Builder for RecorderEndpoint
|
Builder(MediaPipeline mediaPipeline,
String mediaElementClassName) |
Copyright © 2018 Kurento. All rights reserved.


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{% extends "layout.html" %} {% block main_classes %}{% endblock %} {% block content %} LEGAL Valid in all 50 states COMPREHENSIVE Create your will to cover all of your needs SIMPLE Easy to create Email address Create my will THREE STEP PROCESS ANSWER QUESTIONS Your will is generated from the responses that you provide to our questions. Find Out More PRINT & SIGN Print your completed will. Sign. Have a witness sign too. Find Out More UPLOAD Upload your signed will. We will email you every year with an update reminder. Find Out More {% endblock %}
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Create your will to cover all of your needs
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Print your completed will. Sign. Have a witness sign too.
Upload your signed will. We will email you every year with an update reminder.


A list of part of the Bugmasters Projects. You can find more info on Bugmasters Projects page.
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Explore the bugzilla triage tutorial before starting triaging and join the #bugmasters channel for any questions. Select one of the bugs in the list and start triaging. Try to add useful information to the bug! |
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--- layout: post title: Test private message. categories: [] tags: - private - test status: publish type: post published: true meta: _original_post_id: '' _original_import_author: John Duprey author: ---
Test private message.


Search:
Yearly Consumption
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(radius: fluctionation/index ratio, color: gain/loss)
reset
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range:
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range:
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select a time range to zoom in


Browns' Garrett suspended for rest of season by NFL
by Tom Withers, The Associated PressCLEVELAND -- Browns defensive end Myles Garrett has been suspended for at least the rest of the regular season and post-season by the NFL for swinging a helmet and striking Pittsburgh quarterback Mason Rudolph in the head.
Garrett's violent outburst in the final seconds of Thursday's nationally televised game against the Steelers landed him the longest suspension for a single on-field infraction in league history. Tennessee's Albert Haynesworth was suspended five games in 2006.
Garrett ripped off Rudolph's helmet and clobbered him on top of the head, triggering a brawl between the rivals.
Steelers centre Maurkic Pouncey was suspended three games for punching and kicking Garrett, and Browns defensive tackle Larry Ogunjobi was suspended for one game. He shoved Rudolph to the ground from behind during the melee.
The league said Garrett will have to meet with Commissioner Roger Goodell before his reinstatement is considered.
The Steelers and Browns were also fined $250,000 each.


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| Establishment | Address | City | Date Opened | X |
|---|---|---|---|---|
| Pik N Pig | 194 Gilliam McConnell Rd | Carthage | ||
| Jones Cafe | 415 E Main St | Clayton | 1958 | |
| Grady's BBQ | 3096 Arrington Bridge Road | Dudley | ||
| Heath's Steak House | 316 S Powell Ave | Dunn | ||
| City Lunch Hotdogs | 5 S Main St | Franklinton | 1949 | |
| Wilbers BBQ | 4172 US-70 | Goldsboro | 1965 | |
| Hops Burger Bar | 2419 Spring Garden St | Greensboro | Fox News Best Burger in NC | |
| B's BBQ or Parker's BBQ |
751 B's Barbecue Rd 3109 Memorial Dr |
Greenville | 1978 |
|
| Acme Pizza | 204 Village Walk Dr | Holly Springs | ||
| Lexington BBQ or The BBQ Center |
100 Smokehouse Ln 900 N Main St |
Lexington | 1962 |
|
| El's Drive In | 3706 Arendell St | Morehead City | 1959 | |
| The Roast Grill or Cloos Coney Island |
7 S West St 2233 Avent Ferry Rd |
Raleigh | 1940 1933 |
|
| Short Sugar's | 328 S Scales St | Reidsville | 1949 | |
| Central Cafe Hotdogs | 132 S Church St | Rocky Mount | ||
| Johnson's Burgers | 1520 E 11th St | Siler City | 1946 | |
| Bill's Hot Dogs | 109 Gladden St | Washington | 1928 | |
| Flo's Kitchen or Dick's Hot Dog Stand |
1015 Goldsboro St S 1500 Nash St N |
Wilson | Flo's closes @ 2PM 1921 |
|
| Bunn's BBQ | 127 N King St | Windsor | 1938 |


--- layout: post status: publish published: true title: The Cubs Release Carlos Silva. author: display_name: Corey Fineran login: Corey email<EMAIL_ADDRESS>url: '' author_login: Corey author_email<EMAIL_ADDRESS>wordpress_id: 4583 wordpress_url: http://ivyenvy.com/?p=4583 date: '2011-03-27 10:41:54 +0000' date_gmt: '2011-03-27 15:41:54 +0000' categories: - Minor Leagues - Starting Pitching - Spring Training tags: - Aramis Ramirez - Iowa Cubs - Jim Hendry - Mike Quade - Spring Training - Milton Bradley - Twitter - Iowa - Carlos Silva - A's - Andrew Cashner - Spring Training 2011 - Kansas - Darwin Barney comments: - id: 2981 author: Ryan author_email<EMAIL_ADDRESS>author_url: '' date: '2011-03-27 23:12:58 +0000' date_gmt: '2011-03-28 04:12:58 +0000' content: "I think it's interesting that Silva didn't realize that he IS an insurance player at this point in his career. I mean, every athlete will insist that they are in their prime, but doesn't the market technically dictate what \"type\" of player you are? I find that extremely confusing. And in the end, the market DID dictate that he had no trade value. \r\n\r\nI'm looking forward to watching what Cashner can do, and I'm obviously open to anything after last year. It's not ideal that we eat that eleven and a half million dollars, but as Corey said we still got the better of the deal and sometimes you just have to cut your losses and move forward." - id: 2982 author: Ryan author_email<EMAIL_ADDRESS>author_url: '' date: '2011-03-27 23:16:42 +0000' date_gmt: '2011-03-28 04:16:42 +0000' content: And one more thing, anybody with a 10.90 ERA in Spring Training doesn't deserve to make any starting rotation, I don't care what squad you're on. So I guess I would edit the fact that the market dictates what type of player you are but of course your performance is how you'll be judged in the end. And he didn't perform so it's time to move on. ---
Kurt and I were somewhere in Kansas, returning from Spring Training, when the Twitter updates started filtering in that the Cubs informed Carlos Silva that there is no spot for him on the 25-man roster. This news comes less than a year after Silva started the 2010 season 8-0. Most Cubs fans had a pretty good hunch that this start was fools gold.
Silva was, to most people, the only way the Cubs could unload clubhouse malcontent, Milton Bradley. The Cubs got 8-10 good games from Silva, and they are pretty lucky they got that. Silva has had a pretty awful Spring Training, though Kurt and I did witness a pretty stellar Silva pitching performance. On Wednesday, Silva took the mound in what everyone knew was his "do or die" start against the Oakland A's. Silva pitched well, going 6 innings and giving up 1 run on 3 hits and earned the win. According to my disjointed score-card, Silva retired 17 of the last 18 batters he faced. Silva ended the spring 1-2 with a 10.90 ERA. He also grabbed headlines in his first outing in the spring by getting into a tussle with Aramis Ramirez. Silva has maintained that he deserves, and should not need to earn a rotation spot. He's essentially blamed his performance this spring on the added pressure from fighting for a spot.
There were people out there that criticized Mike Quade on his public reaction to the Silva/Ramirez situation. I would say that Quade definitely handled this situation the right way. Within a month, Silva is off the team and the Cubs are moving on. Imagine the media explosion if Quade would have kicked Silva off the team a day or two after the scuffle. Quade downplayed, but understood the situation. He handled it in a calm and collected fashion that benefits the Cubs and brings some more stability to the day-to-day runnings of the organization.
The Cubs told Silva that they would try to trade him. If they were unable to trade him, they'd like him to go spend some time in the minors in Iowa. "No chance," Silva said Saturday about whether he'd go to Triple-A Iowa. "That's not in my mind right now, not at all. I'm not an insurance player. My guess is that's what they want."
So this morning, the Cubs released Silva and will pay him the reported $11.5 million left on his contract. I am glad to see this. If the Cubs were able to trade Carlos Silva, they would have probably had to take on another player with issues that a team is looking to abandon. The Cubs are forking over that money to be done with the Milton Bradley/Carlos Silva era. Given the continued drama surrounding Bradley, the Cubs still probably got the better end of the deal. However, this situation is one of the decisions made by GM Jim Hendry that his critics will put near the top of the list of his bad moves.
Looking forward, the biggest story in this situation is that Andrew Cashner has secured the 5th spot in the starting rotation. With Darwin Barney, and now Andrew Cashner, the youngsters are infiltrating the starting line-up and I think given Mike Quade's years of minor league experience, the Cubs have the right guy at the helm to make this transition from over-paid and under-producting superstars to homegrown talent.


vignettes/keypoint-alignment.Rmd
keypoint-alignment.Rmd
The R code underlying the functions in this vignette were borrowed with permission from Vinces Gaitan’s blog post: https://www.kaggle.com/vicensgaitan/image-registration-the-r-way/notebook
I have modified the code where necessary in order to make it more pipeline-friendly and function oriented.
imlinks <- system.file(package = "ShoeSampleData", "extdata/") %>%
list.files(pattern = "036285L", full.names = T) %>%
sort()
clean_shoe_img <- function(im) {
suppressMessages({
im_bbox <- im %>%
imsplit(axis = "c") %>%
(function(x) is.finite((x[[1]] + x[[2]]) / x[[3]])) %>%
as.cimg() %>%
(function(x) x == 1)
crop.bbox(im, im_bbox) %>%
grayscale() %>%
map_halfimg(fun = autocrop) %>%
crop.borders(nx = 5, ny = 5) %>%
autocrop() %>%
threshold() %>%
shrink(3) %>%
grow(3) %>%
autocrop() %>%
# img_rotate_refit() %>%
# magrittr::extract2("img") %>%
grayscale()
})
}
img_a <- load.image(imlinks[1]) %>% clean_shoe_img()
img_b <- load.image(imlinks[2]) %>% clean_shoe_img()
plot(imlist(img_a, img_b))
We need to pad image a so that it is the same size as image b:
dim(img_a)
# [1] 1179 3847 1 1
dim(img_b)
# [1] 1196 3860 1 1
pad_size <- dim(img_b) - dim(img_a)
img_a <- pad(img_a, nPix = pad_size[1], axes = "x", pos = 1, val = max(img_a)) %>%
pad(nPix = pad_size[2], axes = "y", pos = 1, val = max(img_a))
We can then overlay the two images to see how far apart they are:
The Harris corner detection algorithm has high values (light pixels) in areas where there are well-defined corners in the image.
The detector seems to be working fairly well, outlining major features of the shoe print.
Thresholding the image from the previous step at 99% produces the best 1% of keypoints:
The regions are labeled, and region centers are computed for each separately labeled region
keypoints <- hkp_threshold %>% label() %>% region_centers(bord = 30)
plot(img_a)
points(keypoints$mx, keypoints$my, col = "red")
The first two steps can be streamlined using the harris_keypoints()
function:
For each angle, we pull features from a 40x40 area around the keypoint. These features will be used to identify points of similarity across the two images.
hkp_a <- harris_keypoints(img_a, sigma = 6)
hkp_b <- harris_keypoints(img_b, sigma = 6)
angles_a <- img_a %>% oriented_gradients(sigma = 3)
get_kpf <- function(angles, hkp, im) {
kpa <- data_frame(angle = angles, v = list(hkp$centers)) %>%
tidyr::unnest(v) %>%
dplyr::rename(theta = angle, x = mx, y = my) %>%
mutate(idx = 1:n()) %>%
rowwise() %>%
tidyr::nest(-theta, -idx, .key = "v") %>%
select(-idx)
purrr::pmap(list(theta = kpa$theta, v = kpa$v), descriptor_orientation, im = grayscale(im)) %>%
do.call("rbind", .)
}
kpf_a <- get_kpf(angles_a, hkp_a, img_a)
# Warning in grayscale(im): Image appears to already be in grayscale mode
kpf_b <- get_kpf(angles_b, hkp_b, img_b)
# Warning in grayscale(im): Image appears to already be in grayscale mode
Match points are calculated using the K nearest neighbors algorithm, combined with some thresholding by distance.
RANSAC is then used to find points that have similar homography.
par(mfrow = c(1, 2))
plot(img_a)
hkp_a$centers %$% points(mx, my, col = "orange")
points(match_points$points_a[ransac_points$inliers, ], col = "purple", pch = 16)
plot(img_b)
hkp_b$centers %$% points(mx, my, col = "orange")
points(match_points$points_b[ransac_points$inliers, ], col = "purple", pch = 16)
The homography can be used to warp one image onto the other:
map_fcn <- map_affine_gen(ransac_points$homography)
img_a_warp <- imwarp(img_a, map_fcn, direction = "backward", boundary = "neumann")
plot(img_a_warp)
We can then overlay the two images:
blank_channel <- as.cimg(img_b > 0 & img_a_warp > 0)
overlaid_images <- imappend(imlist(img_a_warp, blank_channel, img_b), axis = "c")
plot(overlaid_images)
Areas that are in the first image only are shown in red; areas in the second image only are shown in blue. Areas in both images are shown in black.


Don't jump into this blindly!
Where are you now?
Where do you want to be?
Set yourself up for success
Get the latest version of AngularJS
They are very syntactically similar so can help with the upgrade.
angular.module('veryComplicatedApp')
.component('appDoSomeMath', function () {
return {
template: '{{ $ctrl.num }} + 1 = {{ $ctrl.addedNum }}
',
bindings: {
num: '@'
},
controller: doSomeMath
};
function doSomeMath () {
this.$onInit = function () {
this.addedNum = this.num + 1;
}
}
});
@Component({
selector: 'app-do-some-math',
template: '{{ num }} + 1 = {{ addedNum }}
'
})
export class DoSomeMathComponent {
@input() numberToAddOneTo: Number;
ngOnInit () {
this.addedNumber = this.numberToAddOneTo + 1;
}
}
This will be super-duper complicated
You have no idea what I am about to do.Consider the "Planning" step and figure out your build process
If you have no idea where to start with this, consider this exercise: "If I just mass-converted to typescript, where could I fit the typescript compilation step in there with what I have?"Webpack is pretty "in" right now, and for good reason.
It's also what the Angular CLI uses, so keep that in mind if you would like to eventually start using it.Incrementally upgrade your app by simultaneously loading both frameworks.
Upgrade: AngularJS to Angular
e.g. an AngularJS service consumed by an Angular component. You are "upgrading" the AngularJS service to be compatible with the Angular consumer.Downgrade: Angular to AngularJS
e.g. an Angular component within an AngularJS module. You are "downgrading" the Angular component to be compatible with the AngularJS module.
@Component({
selector: 'app-do-some-math',
template: '{{ num }} + 1 = {{ addedNum }}
'
})
export class DoSomeMathComponent {
@input() numberToAddOneTo: Number;
ngOnInit () {
this.addedNumber = this.numberToAddOneTo + 1;
}
}
///////////////////
import { DoSomeMathComponent } from './do-some-math.component';
import { downgradeComponent } from '@angular/upgrade/static';
angular.module('veryComplicatedApp')
.component(
'appDoSomeMath',
downgradeComponent({ component: DoSomeMathComponent }) as angular.IDirectiveFactory
);
Remember to add the component to your module's declarations array.
In the spirit of BrieBug CEO Jessie's original "Transitioning to Angular 2" series, we will go over a few more things in the...
Where are we now?
Where do we want to be?
A look at an in-progress upgrade
Gotchas


Beemuse 3D Flips
Usage
Relatively-positioned .flip element (containing absolutely-positioned .flip-front and .flip-back elements) requires width and height to be specified (width, to avoid the flip trigger area from auto-expanding in its containing element, and height, including a bottom margin of your choosing). Keep in mind how setting these may affect responsive versions of .flip elements (the width and height may need to be reset at the appropriate breakpoints).
Degrades gracefully (simply shows back or front without animation). IE10+ support.
Credit: homebrewed as most demos use javascript or don't get it quite right :)
HTML

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Code licensed under the MIT License