max@0: // Copyright (C) 2009-2011 NICTA (www.nicta.com.au)
max@0: // Copyright (C) 2009-2011 Conrad Sanderson
max@0: // 
max@0: // This file is part of the Armadillo C++ library.
max@0: // It is provided without any warranty of fitness
max@0: // for any purpose. You can redistribute this file
max@0: // and/or modify it under the terms of the GNU
max@0: // Lesser General Public License (LGPL) as published
max@0: // by the Free Software Foundation, either version 3
max@0: // of the License or (at your option) any later version.
max@0: // (see http://www.opensource.org/licenses for more info)
max@0: 
max@0: 
max@0: //! \addtogroup op_var
max@0: //! @{
max@0: 
max@0: 
max@0: 
max@0: //! Class for finding variance values of a matrix
max@0: class op_var
max@0:   {
max@0:   public:
max@0:   
max@0:   template<typename eT>
max@0:   inline static eT direct_var(const eT* const X, const uword N, const uword norm_type = 0);
max@0:   
max@0:   template<typename T>
max@0:   inline static  T direct_var(const std::complex<T>* const X, const uword N, const uword norm_type = 0);
max@0:   
max@0:   
max@0:   template<typename eT>
max@0:   inline static typename get_pod_type<eT>::result direct_var(const subview_row<eT>& X, const uword norm_type = 0);
max@0:   
max@0:   template<typename eT>
max@0:   inline static typename get_pod_type<eT>::result direct_var(const subview_col<eT>& X, const uword norm_type = 0);
max@0:   
max@0:   template<typename eT>
max@0:   inline static typename get_pod_type<eT>::result direct_var(const diagview<eT>& X, const uword norm_type = 0);
max@0:   
max@0:   
max@0:   template<typename T1>
max@0:   inline static void apply(Mat<typename T1::pod_type>& out, const mtOp<typename T1::pod_type, T1, op_var>& in);
max@0:   
max@0:   
max@0:   template<typename eT>
max@0:   inline static eT direct_var_robust(const eT* const X, const uword N, const uword norm_type = 0);
max@0:   
max@0:   template<typename T>
max@0:   inline static  T direct_var_robust(const std::complex<T>* const X, const uword N, const uword norm_type = 0);
max@0:   };
max@0: 
max@0: 
max@0: 
max@0: //! @}