numpy.repeat
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numpy.repeat(a, repeats, axis=None)
[source] -
Repeat elements of an array.
- Parameters
-
-
aarray_like
-
Input array.
-
repeatsint or array of ints
-
The number of repetitions for each element.
repeats
is broadcasted to fit the shape of the given axis. -
axisint, optional
-
The axis along which to repeat values. By default, use the flattened input array, and return a flat output array.
-
- Returns
-
-
repeated_arrayndarray
-
Output array which has the same shape as
a
, except along the given axis.
-
See also
-
tile
-
Tile an array.
Examples
>>> np.repeat(3, 4) array([3, 3, 3, 3]) >>> x = np.array([[1,2],[3,4]]) >>> np.repeat(x, 2) array([1, 1, 2, 2, 3, 3, 4, 4]) >>> np.repeat(x, 3, axis=1) array([[1, 1, 1, 2, 2, 2], [3, 3, 3, 4, 4, 4]]) >>> np.repeat(x, [1, 2], axis=0) array([[1, 2], [3, 4], [3, 4]])
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https://numpy.org/doc/1.19/reference/generated/numpy.repeat.html