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Add column with constant value to pandas dataframe [duplicate]
Given a DataFrame:
4 Answers
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How to make good reproducible pandas examples
Having spent a decent amount of time watching both the r and pandas tags on SO, the impression that I get is that pandas questions are less likely to contain reproducible data. This is something that the R community has been pretty good about encouraging, and thanks to guides like this , newc...
How to make an OpenGL rendering context with transparent background?
Rendering contexts usually have a solid color on the background (black or whatever, see the image below):
9 Answers
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How to convert floats to human-readable fractions?
Let's say we have 0.33 , we need to output 1/3 .
If we have 0.4 , we need to output 2/5 .
26 Answers
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Python and pip, list all versions of a package that's available?
Given the name of a Python package that can be installed with pip , is there any way to find out a list of all the possible versions of it that pip could install? Right now it's trial and error.
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Concatenate two slices in Go
I'm trying to combine the slice [1, 2] and the slice [3, 4] . How can I do this in Go?
7 Answers
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Cannot ping AWS EC2 instance
I have an EC2 instance running in AWS. When I try to ping from my local box it is not available.
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How to format a number as percentage in R?
One of the things that used to perplex me as a newby to R was how to format a number as a percentage for printing.
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How to get a value from a cell of a dataframe?
I have constructed a condition that extract exactly one row from my data frame:
11 Answers
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Finding current executable's path without /proc/self/exe
It seems to me that Linux has it easy with /proc/self/exe. But I'd like to know if there is a convenient way to find the current application's directory in C/C++ with cross-platform interfaces. I've seen some projects mucking around with argv[0], but it doesn't seem entirely reliable.
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