softmax() [5/5]

template<typename Mat , require_rev_matrix_t< Mat > * = nullptr>

auto stan::math::softmax ( const Mat &  alpha )

inline

Return the softmax of the specified Eigen vector.

Softmax is guaranteed to return a simplex.

Parameters

alpha

Unconstrained input vector.

Returns

Softmax of the input.

Exceptions

std::domain_error

If the input vector is size 0.

Definition at line 27 of file softmax.hpp.