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Find element's index in pandas Series
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Using CSS how to change only the 2nd column of a table
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answered Mar 29 '10 at 0:04
Nick Craver♦Nick Craver
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What is the difference between class and instance attributes?
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147
Beyond performance considerations, there is a significant semantic difference. In the class a...
Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
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130
Found this on a different forum
If you're wondering why that leading zero is important, it...
Using custom std::set comparator
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162
You are using a function where as you should use a functor (a class that overloads the () oper...
How do you create nested dict in Python?
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313
A nested dict is a dictionary within a dictionary. A very simple thing.
>>> d = {}
&g...
How to find the length of a string in R
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See ?nchar. For example:
> nchar("foo")
[1] 3
> set.seed(10)
> strn <- paste(sample(LETTERS, 10), collapse = "")
> strn
[1] "NHKPBEFTLY"
> nchar(strn)
[1] 10
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What is the difference between '/' and '//' when used for division?
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13 Answers
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Exit a Script On Error
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138
Are you looking for exit?
This is the best bash guide around.
http://tldp.org/LDP/abs/html/
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Is there a way to pass optional parameters to a function?
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115
The Python 2 documentation, 7.6. Function definitions gives you a couple of ways to detect whe...