numpy.repeat — NumPy v1.13 Manual (original) (raw)
numpy. repeat(a, repeats, axis=None)[source]¶
Repeat elements of an array.
| Parameters: | a : array_like Input array. repeats : int or array of ints The number of repetitions for each element. repeats is broadcasted to fit the shape of the given axis. axis : int, optional The axis along which to repeat values. By default, use the flattened input array, and return a flat output array. |
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| Returns: | repeated_array : ndarray Output array which has the same shape as a, except along the given axis. |
See also
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]])