numpy.size#

numpy.size(a, axis=None)[source]#

Return the number of elements along a given axis.

Parameters:

aarray_like

Input data.

axisint, optional

Axis along which the elements are counted. By default, give the total number of elements.

Returns:

element_countint

Number of elements along the specified axis.

See also

shape

dimensions of array

ndarray.shape

dimensions of array

ndarray.size

number of elements in array

Examples

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>>> import numpy as np
>>> a = np.array([[1,2,3],[4,5,6]])
>>> np.size(a)
6
>>> np.size(a,1)
3
>>> np.size(a,0)
2

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