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Tag: numpy-ndarray

create a matrix from combinations with values

I have some combinations like Any idea on how I efficiently can create a four by four matrix with these 0,1 values from all these combinations? So the result will be something like: Answer Imagine if the “combinations” are stored in a file in the following format (or similar): Then you can do: Example (using your sample data): Now df

Combination of rows in numpy.ndarray

I have the following numpy.ndarray I want to find all the possible combinations of sum of each row (sum of individual elements of a row except the last column) of S[0,:,:] with each row of S[1,:,:], i.e., my desired result is (order does not matter): which is a 9-by-2 array resulting from 9 possible combinations of S[0,:,:] and S[1,:,:]. Although

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