size of NumPy array

This is called the "shape" in NumPy, and can be requested via the .shape attribute:

>>> a = zeros((2, 5))>>> a.shape(2, 5)

If you prefer a function, you could also use numpy.shape(a).

python arrays matlab numpy size

Yes numpy has a size function, and shape and size are not quite the same.

Input

import numpy as npdata = [[1, 2, 3, 4], [5, 6, 7, 8]]arrData = np.array(data)print(data)print(arrData.size)print(arrData.shape)

Output

[[1, 2, 3, 4], [5, 6, 7, 8]]
8 # size
(2, 4) # shape

python arrays matlab numpy size

[w,k] = a.shape will give you access to individual sizes if you want to use it for loops like in matlab

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