chainer.functions.repeat¶

chainer.functions.repeat(x, repeats, axis=None)[source]¶

Construct an array by repeating a given array.

Parameters

x (Variable or N-dimensional array) – Input variable.
repeats (int or tuple of int s) – The number of times which each element of x is repeated.
axis (int) – The axis along which to repeat values.

Returns

The repeated output Variable.

Return type

Variable

Example

>>> x = np.array([0, 1, 2])
>>> x.shape
(3,)
>>> y = F.repeat(x, 2)
>>> y.shape
(6,)
>>> y.array
array([0, 0, 1, 1, 2, 2])
>>> x = np.array([[1,2], [3,4]])
>>> x.shape
(2, 2)
>>> y = F.repeat(x, 3, axis=1)
>>> y.shape
(2, 6)
>>> y.array
array([[1, 1, 1, 2, 2, 2],
       [3, 3, 3, 4, 4, 4]])
>>> y = F.repeat(x, (1, 2), axis=0)
>>> y.shape
(3, 2)
>>> y.array
array([[1, 2],
       [3, 4],
       [3, 4]])