chainer.functions.relu¶
-
chainer.functions.
relu
(x)[source]¶ Rectified Linear Unit function.
\[f(x)=\max(0, x).\]Parameters: x ( Variable
ornumpy.ndarray
orcupy.ndarray
) – Input variable. A \((s_1, s_2, ..., s_N)\)-shaped float array.Returns: Output variable. A \((s_1, s_2, ..., s_N)\)-shaped float array. Return type: Variable Example
>>> x = np.array([[-1, 0], [2, -3], [-2, 1]], 'f') >>> np.any(x < 0) True >>> y = F.relu(x) >>> np.any(y.data < 0) False >>> y.shape (3, 2)