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How do I use floating-point division in bash?
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18 Answers
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Rotating a two-dimensional array in Python
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Consider the following two-dimensional list:
original = [[1, 2],
[3, 4]]
Lets break it down step by step:
>>> original[::-1] # elements of original are reversed
[[3, 4], [1, 2]]
This list is passed into zip() using argument unpacking, so the zip call ends...
Convert a row of a data frame to vector
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156
When you extract a single row from a data frame you get a one-row data frame. Convert it to a...
Differences between Oracle JDK and OpenJDK
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11 Answers
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Creating dataframe from a dictionary where entries have different lengths
Say I have a dictionary with 10 key-value pairs. Each entry holds a numpy array. However, the length of the array is not the same for all of them.
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Current time formatting with Javascript
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14 Answers
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How to profile a bash shell script slow startup?
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132
If you have GNU date (or another version that can output nanoseconds), do this at the beginnin...
Understanding dict.copy() - shallow or deep?
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By "shallow copying" it means the content of the dictionary is not copied by value, but just ...
How to extract the n-th elements from a list of tuples?
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188
n = 1 # N. . .
[x[n] for x in elements]
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