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Convert columns to string in Pandas
...will convert keys to valid json (and therefore your keys to strings):
In [11]: df = pd.DataFrame([['A', 2], ['A', 4], ['B', 6]])
In [12]: df.to_json()
Out[12]: '{"0":{"0":"A","1":"A","2":"B"},"1":{"0":2,"1":4,"2":6}}'
In [13]: df[0].to_json()
Out[13]: '{"0":"A","1":"A","2":"B"}'
Note: you can p...
How to filter Pandas dataframe using 'in' and 'not in' like in SQL
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891
You can use pd.Series.isin.
For "IN" use: something.isin(somewhere)
Or for "NOT IN": ~something....
How do I get an object's unqualified (short) class name?
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184
You can do this with reflection. Specifically, you can use the ReflectionClass::getShortName m...
How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
...nvironments on Mac OS X Lion (brand new macbook air purchased in January 2012), I have noticed that resolving to a virtual host is very slow (around 3 seconds) the first time but after that is fast as long as I continue loading it regularly.
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Which is better, number(x) or parseFloat(x)?
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318
The difference between parseFloat and Number
parseFloat/parseInt is for parsing a string, whil...
Is 0 a decimal literal or an octal literal?
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Yes, 0 is an Octal literal in C++.
As per the C++ Standard:
2.14.2 Integer literals [lex.icon]
integer-literal:
decimal-literal integer-suffixopt
octal-literal integer-suffixopt
hexadecimal-literal integer-suffixopt
decimal-literal:
nonzero-digit
decim...
Perl build, unit testing, code coverage: A complete working example
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105
It took me a while and it also took me taking small snippets from a number of different source...
Pandas percentage of total with groupby
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Specify pane percentage in tmuxinator project
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Could not load file or assembly 'Newtonsoft.Json' or one of its dependencies. Manifest definition do
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