[Boost-commit] svn:boost r62319 - in sandbox/statistics/support/boost/accumulators/statistics: . detail

Subject: [Boost-commit] svn:boost r62319 - in sandbox/statistics/support/boost/accumulators/statistics: . detail
From: erwann.rogard_at_[hidden]
Date: 2010-05-30 12:10:48

Author: e_r
Date: 2010-05-30 12:10:48 EDT (Sun, 30 May 2010)
New Revision: 62319
URL: http://svn.boost.org/trac/boost/changeset/62319

Log:
m
Added:
   sandbox/statistics/support/boost/accumulators/statistics/
   sandbox/statistics/support/boost/accumulators/statistics/detail/
   sandbox/statistics/support/boost/accumulators/statistics/detail/weighted_count.hpp   (contents, props changed)

Added: sandbox/statistics/support/boost/accumulators/statistics/detail/weighted_count.hpp
==============================================================================
--- (empty file)
+++ sandbox/statistics/support/boost/accumulators/statistics/detail/weighted_count.hpp	2010-05-30 12:10:48 EDT (Sun, 30 May 2010)
@@ -0,0 +1,111 @@
+///////////////////////////////////////////////////////////////////////////////
+// factor.hpp                                                                //
+//                                                                           //
+//  Copyright 2010 Erwann Rogard. Distributed under the Boost                //
+//  Software License, Version 1.0. (See accompanying file                    //
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)         //
+///////////////////////////////////////////////////////////////////////////////
+#ifndef BOOST_ACCUMULATORS_STATISTICS_DETAIL_WEIGHTED_COUNT_HPP_ER_2010
+#define BOOST_ACCUMULATORS_STATISTICS_DETAIL_WEIGHTED_COUNT_HPP_ER_2010
+
+#include <boost/mpl/placeholders.hpp>
+#include <boost/accumulators/framework/accumulator_base.hpp>
+#include <boost/accumulators/framework/extractor.hpp>
+#include <boost/accumulators/numeric/functional.hpp>
+#include <boost/accumulators/framework/parameters/sample.hpp>
+#include <boost/accumulators/framework/parameters/weight.hpp>
+#include <boost/accumulators/framework/accumulators/external_accumulator.hpp>
+#include <boost/accumulators/framework/depends_on.hpp>
+#include <boost/accumulators/statistics_fwd.hpp>
+
+namespace boost { namespace accumulators
+{
+
+namespace impl
+{
+    ///////////////////////////////////////////////////////////////////////////////
+    // weighted_count_impl
+    template<typename Weight>
+    struct weighted_count_impl
+      : accumulator_base
+    {
+        typedef Weight weighted_sample;
+
+        // for boost::result_of
+        typedef weighted_sample result_type;
+
+        template<typename Args>
+        weighted_count_impl(Args const &args)
+          : weighted_count_(
+                numeric::zero<Weight>::value
+            )
+        {
+        }
+
+        template<typename Args>
+        void operator ()(Args const &args)
+        {
+            // what about overflow?
+            this->weighted_count_ += args[ weight ];
+        }
+
+        result_type result(dont_care) const
+        {
+            return this->weighted_count_;
+        }
+
+    private:
+
+        weighted_sample weighted_count_;
+    };
+
+} // namespace impl
+
+namespace tag
+{
+    struct weighted_count
+      : depends_on<>
+    {
+        typedef accumulators::impl::weighted_count_impl<mpl::_2> impl;
+    };
+
+/*
+    template<typename VariateType, typename VariateTag>
+    struct weighted_count_of_variates
+      : depends_on<>
+    {
+        /// INTERNAL ONLY
+        ///
+        typedef accumulators::impl::weighted_count_impl<VariateType, mpl::_2, VariateTag> impl;
+    };
+
+    struct abstract_weighted_count_of_variates
+      : depends_on<>
+    {
+    };
+*/
+}
+
+namespace extract
+{
+    extractor<tag::weighted_count> const weighted_count = {};
+//    extractor<tag::abstract_weighted_count_of_variates> const weighted_count_of_variates = {};
+
+    BOOST_ACCUMULATORS_IGNORE_GLOBAL(weighted_count)
+//    BOOST_ACCUMULATORS_IGNORE_GLOBAL(weighted_count_of_variates)
+}
+
+using extract::weighted_count;
+//using extract::weighted_count_of_variates;
+
+/*
+template<typename VariateType, typename VariateTag>
+struct feature_of<tag::weighted_count_of_variates<VariateType, VariateTag> >
+  : feature_of<tag::abstract_weighted_count_of_variates>
+{
+};
+*/
+
+}} // namespace boost::accumulators
+
+#endif