max@0: // Copyright (C) 2008-2011 NICTA (www.nicta.com.au)
max@0: // Copyright (C) 2008-2011 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_min
max@0: //! @{
max@0: 
max@0: //! \brief
max@0: //! Delayed 'minimum values' operation.
max@0: //! The dimension, along which the minima are found, is set via 'dim'.
max@0: //! For dim = 0, the minimum value of each column is found (i.e. searches by traversing across rows).
max@0: //! For dim = 1, the minimum value of each row is found (i.e. searches by traversing across columns).
max@0: //! The default is dim = 0.
max@0: 
max@0: template<typename T1>
max@0: arma_inline
max@0: const Op<T1, op_min>
max@0: min(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_min>(X.get_ref(), dim, 0);
max@0:   }
max@0: 
max@0: 
max@0: //! Immediate 'find the minimum value in a row vector' operation
max@0: template<typename eT>
max@0: inline
max@0: arma_warn_unused
max@0: eT
max@0: min(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), "min(): given object has no elements" );
max@0:   
max@0:   return op_min::direct_min(A.mem, A_n_elem);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! Immediate 'find the minimum value in a column vector'
max@0: template<typename eT>
max@0: inline
max@0: arma_warn_unused
max@0: eT
max@0: min(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), "min(): given object has no elements" );
max@0:   
max@0:   return op_min::direct_min(A.mem, A_n_elem);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! \brief
max@0: //! Immediate 'find minimum value' operation,
max@0: //! invoked, for example, by: min(min(A))
max@0: template<typename T1>
max@0: inline
max@0: arma_warn_unused
max@0: typename T1::elem_type
max@0: min(const Op<T1, op_min>& in)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   arma_extra_debug_print("min(): two consecutive min() calls detected");
max@0:   
max@0:   typedef typename T1::elem_type eT;
max@0:   
max@0:   const unwrap<T1> tmp1(in.m);
max@0:   const Mat<eT>& X = tmp1.M;
max@0:   
max@0:   const uword X_n_elem = X.n_elem;
max@0:   
max@0:   arma_debug_check( (X_n_elem == 0), "min(): given object has no elements" );
max@0:   
max@0:   return op_min::direct_min(X.mem, X_n_elem);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename T1>
max@0: inline
max@0: const Op< Op<T1, op_min>, op_min>
max@0: min(const Op<T1, op_min>& in, const uword dim)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   return Op< Op<T1, op_min>, op_min>(in, dim, 0);
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: min(const subview_row<eT>& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_debug_check( (A.n_elem == 0), "min(): given object has no elements" );
max@0:   
max@0:   return op_min::direct_min(A);
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: min(const subview_col<eT>& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_debug_check( (A.n_elem == 0), "min(): given object has no elements" );
max@0:   
max@0:   return op_min::direct_min(A.colptr(0), A.n_rows);
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: min(const diagview<eT>& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_debug_check( (A.n_elem == 0), "min(): given object has no elements" );
max@0:   
max@0:   return op_min::direct_min(A);
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: min(const Op<subview<eT>, op_min>& in)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   arma_extra_debug_print("min(): two consecutive min() calls detected");
max@0:   
max@0:   const subview<eT>& X = in.m;
max@0:   
max@0:   arma_debug_check( (X.n_elem == 0), "min(): given object has no elements" );
max@0:   
max@0:   return op_min::direct_min(X);
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: min(const subview_elem1<eT,T1>& A)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   const Mat<eT> X(A);
max@0:   
max@0:   const uword X_n_elem = X.n_elem;
max@0:   
max@0:   arma_debug_check( (X_n_elem == 0), "min(): given object has no elements" );
max@0:   
max@0:   return op_min::direct_min(X.mem, X_n_elem);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! @}