numpy.repeat(a, repeats, axis=None)
Repeat each element of an array after themselves
Parameters:aarray_likeInput array.
repeatsint or array of intsThe number of repetitions for each element. repeats is broadcasted to fit the shape of the given axis.
axisint, optionalThe axis along which to repeat values. By default, use the flattened input array, and return a flat output array.
Returns:repeated_arrayndarrayOutput array which has the same shape as a, except along the given axis.
See also
Tile an array.
Find the unique elements of an array.
Examples
>>> importnumpyasnp>>> np.repeat(3,4)array([3, 3, 3, 3])>>> np.repeat([4,5,6],[1,2,3])array([4, 5, 5, 6, 6, 6])>>> 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]])