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Beginner's guide to ElasticSearch [closed]
...ransferred over to the Elastic blog, and can be found by filtering on my name: https://www.elastic.co/blog/author/zachary-tong
To be perfectly honest, the best source of beginner knowledge is now Elasticsearch - The Definitive Guide written by myself and Clinton Gormley.
It assumes zero search ...
Kill a postgresql session/connection
... superuser to use this function. This works on all operating systems the same.
SELECT
pg_terminate_backend(pid)
FROM
pg_stat_activity
WHERE
-- don't kill my own connection!
pid <> pg_backend_pid()
-- don't kill the connections to other databases
AND datname = 'da...
Access POST values in Symfony2 request object
...
this solution is deprecated since 2.3 and will be removed in 3.0, see documentation
$form->getData();
gives you an array for the form parameters
from symfony2 book page 162 (Chapter 12: Forms)
[...] sometimes, you may just want to use a form without a class, and get back an array of the submitt...
What is an intuitive explanation of the Expectation Maximization technique? [closed]
Expectation Maximization (EM) is a kind of probabilistic method to classify data. Please correct me if I am wrong if it is not a classifier.
...
delete word after or around cursor in VIM
...cutes one command in Normal mode and jumps straight back into Insert, so something like imap <C-d> <C-o>diw works too. It also doesn't create an undo point, which <Esc> pretty much always does.
– zelk
May 17 '12 at 10:34
...
How can I get the iOS 7 default blue color programmatically?
I'm creating custom elements in my app and want to match the look and feel of the new iOS. iOS 7 introduced to us a very common lighter blue color, the default color or tint for several elements, including the system button, segmented control, etc. They've made it easy to select the color using IB, ...
Differences and relationship between glActiveTexture and glBindTexture
... like this:
struct Object
{
int count;
float opacity;
char *name;
};
The object has certain values stored in it and it has state. OpenGL objects have state too.
Changing State
In C/C++, if you have an instance of type Object, you would change its state as follows: obj.count = 5; You...
PHP equivalent of .NET/Java's toString()
...
@MarkAmery He gave an answer that implicitly calls the __toString() "Magic Method", but didn't mention that at all. The user asked for an answer that was like the Java toString() method, and in PHP, that's the __toString() function...
Android: AutoCompleteTextView show suggestions when no text entered
...estions even if it has no text - but setThreshold(0) works exactly the same as setThreshold(1) - so the user has to enter at least 1 character to show the suggestions.
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Escaping ampersand in URL
I am trying to send a GET message that contains strings with ampersands and can't figure how to escape the ampersand in the URL.
...