math/prim_2fun_2diag__pre__multiply_8hpp_source.html

#ifndef STAN_MATH_PRIM_FUN_DIAG_PRE_MULTIPLY_HPP

#define STAN_MATH_PRIM_FUN_DIAG_PRE_MULTIPLY_HPP


#include <stan/math/prim/err.hpp>

#include <stan/math/prim/fun/Eigen.hpp>


namespace stan {

namespace math {


template <typename T1, typename T2, require_eigen_vector_t<T1>* = nullptr,

          require_eigen_t<T2>* = nullptr,

          require_all_not_st_var<T1, T2>* = nullptr>

auto diag_pre_multiply(const T1& m1, const T2& m2) {

  check_size_match("diag_pre_multiply", "m1.size()", m1.size(), "m2.rows()",

                   m2.rows());


  return m1.asDiagonal() * m2;

}


}  // namespace math

}  // namespace stan

#endif

Eigen.hpp

stan::math::diag_pre_multiply
auto diag_pre_multiply(const T1 &m1, const T2 &m2)
Return the product of the diagonal matrix formed from the vector or row_vector and a matrix.
Definition diag_pre_multiply.hpp:25

stan::math::check_size_match
void check_size_match(const char *function, const char *name_i, T_size1 i, const char *name_j, T_size2 j)
Check if the provided sizes match.
Definition check_size_match.hpp:24

stan
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...
Definition unit_vector_constrain.hpp:15

err.hpp