variance() [3/7]

template<typename EigMat , require_eigen_t< EigMat > * = nullptr, require_not_vt_var< EigMat > * = nullptr>

value_type_t< EigMat > stan::math::variance ( const EigMat &  m )

inline

Returns the sample variance (divide by length - 1) of the coefficients in the specified matrix.

Template Parameters

EigMat

type inheriting from EigenBase that does not have an var scalar type.

Parameters

m

matrix

Returns

sample variance of coefficients

Exceptions

<code>std::invalid_argument</code>

if the matrix has size zero

Definition at line 25 of file variance.hpp.