52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
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// Copyright (C) 2012-2015 National ICT Australia (NICTA)
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// -------------------------------------------------------------------
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//
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// Written by Conrad Sanderson - http://conradsanderson.id.au
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// Written by Ryan Curtin
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//! \addtogroup spop_mean
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//! @{
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//! Class for finding mean values of a sparse matrix
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class spop_mean
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{
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public:
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// Apply mean into an output sparse matrix (or vector).
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template<typename T1>
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inline static void apply(SpMat<typename T1::elem_type>& out, const SpOp<T1, spop_mean>& in);
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template<typename T1>
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inline static void apply_noalias_fast(SpMat<typename T1::elem_type>& out, const SpProxy<T1>& p, const uword dim);
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template<typename T1>
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inline static void apply_noalias_slow(SpMat<typename T1::elem_type>& out, const SpProxy<T1>& p, const uword dim);
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// Take direct mean of a set of values. Length of array and number of values can be different.
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template<typename eT>
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inline static eT direct_mean(const eT* const X, const uword length, const uword N);
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template<typename eT>
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inline static eT direct_mean_robust(const eT* const X, const uword length, const uword N);
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template<typename T1>
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inline static typename T1::elem_type mean_all(const SpBase<typename T1::elem_type, T1>& X);
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// Take the mean using an iterator.
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template<typename T1, typename eT>
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inline static eT iterator_mean(T1& it, const T1& end, const uword n_zero, const eT junk);
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template<typename T1, typename eT>
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inline static eT iterator_mean_robust(T1& it, const T1& end, const uword n_zero, const eT junk);
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};
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//! @}
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