tf-keras-skeleton.py 文件源码

def std(x, axis=None, keepdims=False):
      """Standard deviation of a tensor, alongside the specified axis.

      Arguments:
          x: A tensor or variable.
          axis: An integer, the axis to compute the standard deviation.
          keepdims: A boolean, whether to keep the dimensions or not.
              If `keepdims` is `False`, the rank of the tensor is reduced
              by 1. If `keepdims` is `True`,
              the reduced dimension is retained with length 1.

      Returns:
          A tensor with the standard deviation of elements of `x`.
      """
      return math_ops.sqrt(var(x, axis=axis, keepdims=keepdims))