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How do I write good/correct package __init__.py files
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__all__ is very good - it helps guide import statements without automatically importing modules
http://docs.python.org/tutorial/modules.html#importing-from-a-package
using __all__ and import * is redundant, only __all__ is nee...
A simple explanation of Naive Bayes Classification
... & part two being the confusion surrounding Training set.
In general all of Machine Learning Algorithms need to be trained for supervised learning tasks like classification, prediction etc. or for unsupervised learning tasks like clustering.
During the training step, the algorithms are taught...
How do I configure Notepad++ to use spaces instead of tabs?
...e size to 4.
See documentation: http://docs.notepad-plus-plus.org/index.php/Built-in_Languages#Tab_settings
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Best way to add “current” class to nav in Rails 3
...d this thoroughly and I'm very new to RoR (moving over after a decade with PHP) so if this has a major flaw I'd love to hear it.
At least this way you only need 1 helper function and a simple call in each link.
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What is the difference between 'classic' and 'integrated' pipeline mode in IIS7?
...tely blended and integrated in IIS. In this mode, ASP.NET HttpModules basically have nearly as much power as an ISAPI filter would have had and ASP.NET HttpHandlers can have nearly equivalent capability as an ISAPI extension could have. In this mode, ASP.NET is basically a part of IIS.
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When to use Spring Integration vs. Camel?
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We choose Camel over Spring-Integration because the fluent API is really nice. We actually use it in Spring projects and use Spring to configure part of it. The programming API's are clear and there is a large set of sensible components.
We did a small scale shootout and basically at that t...
SecurityError: Blocked a frame with origin from accessing a cross-origin frame
...o not use it. This else branch is
// here just for clarity, you usually shouldn't need it.
return;
}
});
This method can be applied in both directions, creating a listener in the main page too, and receiving responses from the frame. The same logic can also be implemented i...
PostgreSQL: Difference between text and varchar (character varying)
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There is no difference, under the hood it's all varlena (variable length array).
Check this article from Depesz: http://www.depesz.com/index.php/2010/03/02/charx-vs-varcharx-vs-varchar-vs-text/
A couple of highlights:
To sum it all up:
char(n) – takes t...
When should I use a composite index?
...olumn_A )
But it will not (at least not directly, maybe it can help partially if there are no better indices) help for queries that need
index( column_A, column_C )
Notice how column_B is missing.
In your original example, a composite index for two dimensions will mostly benefit queries that q...
Semantic Diff Utilities [closed]
...bove approximation.
EDIT Jan 2010: Versions available for C++, C#, Java, PHP, and COBOL.
The website shows specific examples for most of these.
EDIT May 2010: Python and JavaScript added.
EDIT Oct 2010: EGL added.
EDIT Nov 2010: VB6, VBScript, VB.net added
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