gp_exp_quad_cov() [7/7]

template<typename T_x , typename T_sigma , require_st_arithmetic< T_x > * = nullptr, require_stan_scalar_t< T_sigma > * = nullptr>

Eigen::Matrix< var, -1, -1 > stan::math::gp_exp_quad_cov ( const std::vector< T_x > &  x, const T_sigma  sigma, const var  length_scale  )

inline

Returns a squared exponential kernel.

Template Parameters

T_x	type of elements in the vector

Parameters

x	std::vector input that can be used in square distance Assumes each element of x is the same size
sigma	standard deviation
length_scale	length scale

Returns

squared distance

Exceptions

std::domain_error

if sigma <= 0, l <= 0, or x is nan or infinite

Definition at line 33 of file gp_exp_quad_cov.hpp.