Python for matlab users cheat sheet

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Sum / max / min of each column

sum(A, 1)
max(A, [], 1)
min(A, [], 1)

sum(A, 0)
np.amax(A, 0)
np.amin(A, 0)

sum(A, dims = 1)
maximum(A, dims = 1)
minimum(A, dims = 1)

Sum / max / min of each row

sum(A, 2)
max(A, [], 2)
min(A, [], 2)

sum(A, 1)
np.amax(A, 1)
np.amin(A, 1)

sum(A, dims = 2)
maximum(A, dims = 2)
minimum(A, dims = 2)

Sum / max / min of entire matrix

sum(A(:))
max(A(:))
min(A(:))

np.sum(A)
np.amax(A)
np.amin(A)

sum(A)
maximum(A)
minimum(A)

Cumulative sum / max / min by row

cumsum(A, 1)
cummax(A, 1)
cummin(A, 1)

np.cumsum(A, 0)
np.maximum.accumulate(A, 0)
np.minimum.accumulate(A, 0)

cumsum(A, dims = 1)
accumulate(max, A, dims = 1)
accumulate(min, A, dims = 1)

Cumulative sum / max / min by column

cumsum(A, 2)
cummax(A, 2)
cummin(A, 2)

np.cumsum(A, 1)
np.maximum.accumulate(A, 1)
np.minimum.accumulate(A, 1)

cumsum(A, dims = 2)
accumulate(max, A, dims = 2)
accumulate(min, A, dims = 2)

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