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 fn_median
max@0: //! @{
max@0: 
max@0: 
max@0: template<typename T1>
max@0: arma_inline
max@0: const Op<T1, op_median>
max@0: median(const Base<typename T1::elem_type,T1>& X, const uword dim = 0)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   return Op<T1, op_median>(X.get_ref(), dim, 0);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! Immediate 'find the median value of a row vector' operation
max@0: template<typename eT>
max@0: inline
max@0: arma_warn_unused
max@0: eT
max@0: median(const Row<eT>& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   const uword A_n_elem = A.n_elem;
max@0:   
max@0:   arma_debug_check( (A_n_elem == 0), "median(): given object has no elements" );
max@0:   
max@0:   return op_median::direct_median(A.mem, A_n_elem);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! Immediate 'find the median value of a column vector' operation
max@0: template<typename eT>
max@0: inline
max@0: arma_warn_unused
max@0: eT
max@0: median(const Col<eT>& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   const uword A_n_elem = A.n_elem;
max@0:   
max@0:   arma_debug_check( (A_n_elem == 0), "median(): given object has no elements" );
max@0:   
max@0:   return op_median::direct_median(A.mem, A_n_elem);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! Immediate 'find the median value of a row vector' operation (complex number version)
max@0: template<typename T>
max@0: inline
max@0: arma_warn_unused
max@0: std::complex<T>
max@0: median(const Row< std::complex<T> >& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   const uword A_n_elem = A.n_elem;
max@0:   
max@0:   arma_debug_check( (A_n_elem == 0), "median(): given object has no elements" );
max@0:   
max@0:   uword index1;
max@0:   uword index2;
max@0:   op_median::direct_cx_median_index(index1, index2, A.mem, A_n_elem);
max@0:   
max@0:   return (index1 == index2) ? A.mem[index1] : op_median::robust_mean( A.mem[index1], A.mem[index2] );
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! Immediate 'find the median value of a column vector' operation (complex number version)
max@0: template<typename T>
max@0: inline
max@0: arma_warn_unused
max@0: std::complex<T>
max@0: median(const Col< std::complex<T> >& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   const uword A_n_elem = A.n_elem;
max@0:   
max@0:   arma_debug_check( (A_n_elem == 0), "median(): given object has no elements" );
max@0:   
max@0:   uword index1;
max@0:   uword index2;
max@0:   op_median::direct_cx_median_index(index1, index2, A.mem, A_n_elem);
max@0:   
max@0:   return (index1 == index2) ? A.mem[index1] : op_median::robust_mean( A.mem[index1], A.mem[index2] );
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! find the median value of a subview_row
max@0: template<typename eT>
max@0: inline
max@0: arma_warn_unused
max@0: eT
max@0: median(const subview_row<eT>& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_debug_check( (A.n_elem == 0), "median(): given object has no elements" );
max@0:   
max@0:   return op_median::direct_median(A);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! find the median value of a subview_col
max@0: template<typename eT>
max@0: inline
max@0: arma_warn_unused
max@0: eT
max@0: median(const subview_col<eT>& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_debug_check( (A.n_elem == 0), "median(): given object has no elements" );
max@0:   
max@0:   return op_median::direct_median(A.colptr(0), A.n_rows);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! find the median value of a subview_row (complex number version)
max@0: template<typename T>
max@0: inline
max@0: arma_warn_unused
max@0: std::complex<T>
max@0: median(const subview_row< std::complex<T> >& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_debug_check( (A.n_elem == 0), "median(): given object has no elements" );
max@0:   
max@0:   uword index1;
max@0:   uword index2;
max@0:   op_median::direct_cx_median_index(index1, index2, A);
max@0:   
max@0:   return (index1 == index2) ? A[index1] : op_median::robust_mean(A[index1], A[index2]);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! find the median value of a subview_col (complex number version)
max@0: template<typename T>
max@0: inline
max@0: arma_warn_unused
max@0: std::complex<T>
max@0: median(const subview_col< std::complex<T> >& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_debug_check( (A.n_elem == 0), "median(): given object has no elements" );
max@0:   
max@0:   uword index1;
max@0:   uword index2;
max@0:   op_median::direct_cx_median_index(index1, index2, A);
max@0:   
max@0:   return (index1 == index2) ? A[index1] : op_median::robust_mean(A[index1], A[index2]);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: inline
max@0: arma_warn_unused
max@0: eT
max@0: median(const diagview<eT>& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_debug_check( (A.n_elem == 0), "median(): given object has no elements" );
max@0:   
max@0:   return op_median::direct_median(A);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename T>
max@0: inline
max@0: arma_warn_unused
max@0: std::complex<T>
max@0: median(const diagview< std::complex<T> >& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_debug_check( (A.n_elem == 0), "median(): given object has no elements" );
max@0:   
max@0:   uword index1;
max@0:   uword index2;
max@0:   op_median::direct_cx_median_index(index1, index2, A);
max@0:   
max@0:   return (index1 == index2) ? A[index1] : op_median::robust_mean(A[index1], A[index2]);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT, typename T1>
max@0: inline
max@0: arma_warn_unused
max@0: eT
max@0: median(const subview_elem1<eT,T1>& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   const Col<eT> X(A);
max@0:   
max@0:   return median(X);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! @}