one_hot_vector()

Eigen::VectorXd stan::math::one_hot_vector ( int  K, int  k  )

inline

Return a vector with 1 in the k-th position and zero elsewhere.

Parameters

K	size of the vector
k	position of the 1 (indexing from 1)

Returns

A vector of size K with all elements initialized to zero and a 1 in the k-th position.

Exceptions

std::domain_error

if K is not positive, or if k is less than 1 or greater than K.

Definition at line 20 of file one_hot_vector.hpp.