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How to check if a column exists in Pandas
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To check if one or more columns all exist, you can use set.issubset, as in:
if set(['A','C']).issubset(df.columns):
df['sum'] = df['A'] + df['C']
As @brianpck points out in a comment, set([]) can alternatively be constructed with curly...
How do I run Redis on Windows?
...an use to interact with any Redis instance.
The RGL repository has historically been listed as an alternative Windows port for Redis, but this repository has not been maintained for some time and implements an older version of Redis than the Microsoft port.
It should be noted that the official port ...
Ruby on Rails generates model field:type - what are the options for field:type?
...nother model's ID. I'd look it up myself, but I haven't figured out, among all my Ruby on Rails documentation links, how to find the definitive source.
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Why does MSBuild look in C:\ for Microsoft.Cpp.Default.props instead of c:\Program Files (x86)\MSBui
...n publishing a cocos2d-x application using their command line tool, which calls MSBuild. I'm using Win 7 64-bit, VS2013 express, cocos2d-x version 3.3, .NET Framework 4.5 installed.
I fixed the problem by setting the following before running the cocos.py publish command:
SET VCTargetsPath=C:\Progr...
vim repeat find next character 'x'
... and ;), to a different character than the repetition of an edit (.). This allows you to do fast searches and changes to the search results. If you want to replace some + in a line with * you could do something like this (skipping some characters and replacing others): f+r*;.;;.;.;;;.
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What is the best way to programmatically detect porn images? [closed]
...rm of spam these days. What if I wanted something like akismet to automatically detect porn images on a social networking site which allows users to upload their pics, avatars, etc?
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How can I use tabs for indentation in IntelliJ IDEA?
...nvert tabs to spaces, you can chose "To Spaces" from the same place.
For all files
The paths in the other answers were changed a little:
File > Settings... > Editor > Code Style > Java > Tabs and Indents > Use tab character
File > Other Settings > Default Settings... &g...
How do I enable language extensions from within GHCi?
... -XRankNTypes. The -X part is a compiler switch, by the way, extension is called just RankNTypes.
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UILabel - auto-size label to fit text?
...thing very similar, my category lets a UILabel stretch it's height to show all the content: https://gist.github.com/1005520
Or check out this post: https://stackoverflow.com/a/7242981/662605
This would stretch the height, but you can change it around easily to work the other way and stretch the w...
Difference between $(window).load() and $(document).ready() functions
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document.ready is a jQuery event, it runs when the DOM is ready, e.g. all elements are there to be found/used, but not necessarily all content.
window.onload fires later (or at the same time in the worst/failing cases) when images and such are loaded, so if you're using image dimensions for exa...