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Changing a specific column name in pandas DataFrame
...columns = {'two':'new_name'})
In [28]: df
Out[28]:
one three new_name
0 1 a 9
1 2 b 8
2 3 c 7
3 4 d 6
4 5 e 5
Following is the docstring for the rename method.
Definition: df.rename(self, index=None, columns=None, co...
how to generate migration to make references polymorphic
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109
As far as I know, there's no built-in generator for polymorphic associations. Generate a blank ...
The requested resource does not support HTTP method 'GET'
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ravy amiry
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answered Oct 7 '12 at 5:45
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Style child element when hover on parent
... Adrien Be
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answered Aug 27 '11 at 21:16
jtbandesjtbandes
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Can extension methods be applied to interfaces?
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answered May 5 '10 at 2:58
AaronaughtAaronaught
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Convert String to equivalent Enum value
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answered Aug 14 '11 at 13:10
adarshradarshr
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How to do multiple line editing?
...Harry Joy
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44
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How do I get the first n characters of a string without checking the size or going out of bounds?
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Here's a neat solution:
String upToNCharacters = s.substring(0, Math.min(s.length(), n));
Opinion: while this solution is "neat", I think it is actually less readable than a solution that uses if / else in the obvious way. If the reader hasn't seen this trick, he/she has to think ...
Difference between UTF-8 and UTF-16?
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answered Jan 11 '11 at 7:50
Sergei TachenovSergei Tachenov
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Inno Setup for Windows service?
... Stocker
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answered Sep 20 '09 at 1:39
lubos haskolubos hasko
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