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RuntimeWarning: invalid value encountered in divide
... np
np.seterr(divide='ignore', invalid='ignore')
For more details see:
http://docs.scipy.org/doc/numpy/reference/generated/numpy.seterr.html
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switch() statement usage
... Also, here is a good video that talks about it in the context of MATLAB:
http://blogs.mathworks.com/pick/2008/01/02/matlab-basics-switch-case-vs-if-elseif/
Personally, when I have 3 or more cases, I usually just go with case/switch.
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Can I install Python windows packages into virtualenvs?
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I ended up adapting a script (http://effbot.org/zone/python-register.htm) to register a Python installation in the registry. I can pick the Python to be the Python in the registry, run the Windows installer, then set the registry back:
# -*- encoding: u...
Comments in .gitignore?
...omments in there. They however must start at the beginning of a line.
cf. http://git-scm.com/book/en/Git-Basics-Recording-Changes-to-the-Repository#Ignoring-Files
The rules for the patterns you can put in the .gitignore file are as follows:
- Blank lines or lines starting with # are ignored.
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Get first key in a (possibly) associative array?
... seconds
array_keys to get first key: 10.059751987457 seconds
reset+key http://3v4l.org/b4DrN/perf#tabs
foreach http://3v4l.org/gRoGD/perf#tabs
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How to validate an Email in PHP?
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See the notes at http://www.php.net/manual/en/function.ereg.php:
Note:
As of PHP 5.3.0, the regex extension is deprecated in favor of
the PCRE extension. Calling this
function will issue an E_DEPRECATED
notice. See the list of d...
Deep Learning（深度学习）学习笔记整理系列之（三） - 大数据 & AI - 清泛...
...笔记Deep Learning（深度学习）学习笔记整理系列zouxy09@qq.comhttp: blog.csdn.net zouxy09作者：Zouxyversion 1.0 2013-04-08原文网址：h...Deep Learning（深度学习）学习笔记整理系列
zouxy09@qq.com
http://blog.csdn.net/zouxy09
作者：Zouxy
version 1.0 2013-04-08
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Deep Learning（深度学习）学习笔记整理系列之（三） - 大数据 & AI - 清泛...
...笔记Deep Learning（深度学习）学习笔记整理系列zouxy09@qq.comhttp: blog.csdn.net zouxy09作者：Zouxyversion 1.0 2013-04-08原文网址：h...Deep Learning（深度学习）学习笔记整理系列
zouxy09@qq.com
http://blog.csdn.net/zouxy09
作者：Zouxy
version 1.0 2013-04-08
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Deep Learning（深度学习）学习笔记整理系列之（三） - 大数据 & AI - 清泛...
...笔记Deep Learning（深度学习）学习笔记整理系列zouxy09@qq.comhttp: blog.csdn.net zouxy09作者：Zouxyversion 1.0 2013-04-08原文网址：h...Deep Learning（深度学习）学习笔记整理系列
zouxy09@qq.com
http://blog.csdn.net/zouxy09
作者：Zouxy
version 1.0 2013-04-08
...
Deep Learning（深度学习）学习笔记整理系列之（三） - 大数据 & AI - 清泛...
...笔记Deep Learning（深度学习）学习笔记整理系列zouxy09@qq.comhttp: blog.csdn.net zouxy09作者：Zouxyversion 1.0 2013-04-08原文网址：h...Deep Learning（深度学习）学习笔记整理系列
zouxy09@qq.com
http://blog.csdn.net/zouxy09
作者：Zouxy
version 1.0 2013-04-08
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