Fn_princomp_cov

Functions

template<typename T1 >
void princomp_cov (Mat< typename T1::elem_type > &coeff_out, Col< typename T1::pod_type > &latent_out, Col< typename T1::pod_type > &explained_out, const Base< typename T1::elem_type, T1 > &X)
 principal component analysis of a covariance matrix -- 3 arguments version coeff_out -> principal component coefficients latent_out -> principal component variances explained_out -> percentage of the total variance explained by each principal component.
template<typename T1 >
void princomp_cov (Mat< typename T1::elem_type > &coeff_out, Col< typename T1::pod_type > &latent_out, const Base< typename T1::elem_type, T1 > &X)
 principal component analysis of a covariance matrix -- 2 arguments version coeff_out -> principal component coefficients latent_out -> principal component variances
template<typename T1 >
const Op< T1, op_princomp_covprincomp_cov (const Base< typename T1::elem_type, T1 > &X)
 principal component analysis of a covariance matrix -- 1 argument version coeff_out -> principal component coefficients

Function Documentation

template<typename T1 >
void princomp_cov ( Mat< typename T1::elem_type > &  coeff_out,
Col< typename T1::pod_type > &  latent_out,
Col< typename T1::pod_type > &  explained_out,
const Base< typename T1::elem_type, T1 > &  X 
) [inline]

principal component analysis of a covariance matrix -- 3 arguments version coeff_out -> principal component coefficients latent_out -> principal component variances explained_out -> percentage of the total variance explained by each principal component.

Definition at line 32 of file fn_princomp_cov.hpp.

References op_princomp_cov::direct_princomp_cov(), and Base< elem_type, derived >::get_ref().

00038   {
00039   arma_extra_debug_sigprint();
00040   
00041   typedef typename T1::elem_type eT;
00042   
00043   const unwrap<T1>   tmp(X.get_ref());
00044   const Mat<eT>& A = tmp.M;
00045 
00046   op_princomp_cov::direct_princomp_cov(coeff_out, latent_out, explained_out, A); 
00047   }

template<typename T1 >
void princomp_cov ( Mat< typename T1::elem_type > &  coeff_out,
Col< typename T1::pod_type > &  latent_out,
const Base< typename T1::elem_type, T1 > &  X 
) [inline]

principal component analysis of a covariance matrix -- 2 arguments version coeff_out -> principal component coefficients latent_out -> principal component variances

Definition at line 59 of file fn_princomp_cov.hpp.

References op_princomp_cov::direct_princomp_cov(), and Base< elem_type, derived >::get_ref().

00064   {
00065   arma_extra_debug_sigprint();
00066  
00067   typedef typename T1::elem_type eT;
00068   
00069   const unwrap<T1>   tmp(X.get_ref());
00070   const Mat<eT>& A = tmp.M;
00071  
00072   op_princomp_cov::direct_princomp_cov(coeff_out, latent_out, A);
00073   }

template<typename T1 >
const Op<T1, op_princomp_cov> princomp_cov ( const Base< typename T1::elem_type, T1 > &  X  )  [inline]

principal component analysis of a covariance matrix -- 1 argument version coeff_out -> principal component coefficients

Definition at line 83 of file fn_princomp_cov.hpp.

References Base< elem_type, derived >::get_ref().

00084   {
00085   arma_extra_debug_sigprint();
00086 
00087   return Op<T1, op_princomp_cov>(X.get_ref());
00088   }