Applies the element-wise function:

nn_sigmoid()

Details

$$ \mbox{Sigmoid}(x) = \sigma(x) = \frac{1}{1 + \exp(-x)} $$

Shape

  • Input: \((N, *)\) where * means, any number of additional dimensions

  • Output: \((N, *)\), same shape as the input

Examples

if (torch_is_installed()) { m <- nn_sigmoid() input <- torch_randn(2) output <- m(input) }