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How to sort a dataFrame in python pandas by two or more columns?
Suppose I have a dataframe with columns a , b and c , I want to sort the dataframe by column b in ascending order, and by column c in descending order, how do I do this?
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C dynamically growing array
I have a program that reads a "raw" list of in-game entities, and I intend to make an array holding an index number (int) of an indeterminate number of entities, for processing various things. I would like to avoid using too much memory or CPU for keeping such indexes...
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Accessing items in an collections.OrderedDict by index
Lets say I have the following code:
9 Answers
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An efficient way to transpose a file in Bash
I have a huge tab-separated file formatted like this
29 Answers
29
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How do I check in SQLite whether a table exists?
How do I, reliably , check in SQLite, whether a particular user table exists?
22 Answers
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How can I create directory tree in C++/Linux?
I want an easy way to create multiple directories in C++/Linux.
17 Answers
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How to count total lines changed by a specific author in a Git repository?
Is there a command I can invoke which will count the lines changed by a specific author in a Git repository? I know that there must be ways to count the number of commits as Github does this for their Impact graph.
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Is there any boolean type in Oracle databases?
Is there any Boolean type in Oracle databases, similar to the BIT datatype in Ms SQL Server?
11 Answers
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How to sleep for five seconds in a batch file/cmd [duplicate]
Windows's Snipping tool can capture the screen, but sometimes I want to capture the screen after five seconds, such as taking an image being displayed by the webcam. (Run the script and smile at the camera, for example.)
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Change navbar color in Twitter Bootstrap
How would I go about modifying the CSS to change the color of the navbar in Twitter Bootstrap?
12 Answers
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