torch.heaviside
torch.heaviside(input, values, *, out=None) -> Tensor
Computes the Heaviside step function for each element in "input".
   The Heaviside step function is defined as:
  \text{{heaviside}}(input, values) = \begin{cases}     0, &
  \text{if input < 0}\\     values, & \text{if input == 0}\\
  1, & \text{if input > 0} \end{cases}

Parameters:
      * input (Tensor) -- the input tensor.
  * **values** (*Tensor*) -- The values to use where "input" is
    zero.

Keyword Arguments:
      out (Tensor, optional) -- the output tensor.
Example:
  >>> input = torch.tensor([-1.5, 0, 2.0])
  >>> values = torch.tensor([0.5])
  >>> torch.heaviside(input, values)
  tensor([0.0000, 0.5000, 1.0000])
  >>> values = torch.tensor([1.2, -2.0, 3.5])
  >>> torch.heaviside(input, values)
  tensor([0., -2., 1.])
