asc26 amss-ncku initialized

AMSS_NCKU_source/norm.C

@@ -0,0 +1,68 @@
+#include <math.h>
+#include <assert.h>
+#include <stdlib.h>
+
+#include "util.h"
+
+namespace AHFinderDirect
+{
+	namespace jtutil
+	{
+
+		template <typename fp_t>
+		norm<fp_t>::norm()
+			: N_(0L),
+			  sum_(0.0), sum2_(0.0),
+			  max_abs_value_(0.0), min_abs_value_(0.0),
+			  max_value_(0.0), min_value_(0.0)
+		{
+		}
+
+		template <typename fp_t>
+		void norm<fp_t>::reset()
+		{
+			N_ = 0L;
+			sum_ = 0.0;
+			sum2_ = 0.0;
+			max_abs_value_ = 0.0;
+			min_abs_value_ = 0.0;
+			max_value_ = 0.0;
+			min_value_ = 0.0;
+		}
+
+		template <typename fp_t>
+		void norm<fp_t>::data(fp_t x)
+		{
+			sum_ += x;
+			sum2_ += x * x;
+
+			const fp_t abs_x = jtutil::abs<fp_t>(x);
+			max_abs_value_ = jtutil::tmax(max_abs_value_, abs_x);
+			min_abs_value_ = (N_ == 0) ? abs_x : jtutil::tmin(min_abs_value_, abs_x);
+
+			min_value_ = (N_ == 0) ? x : jtutil::tmin(min_value_, x);
+			max_value_ = (N_ == 0) ? x : jtutil::tmax(max_value_, x);
+
+			++N_;
+		}
+
+		template <typename fp_t>
+		fp_t norm<fp_t>::mean() const { return sum_ / fp_t(N_); }
+		template <typename fp_t>
+		fp_t norm<fp_t>::two_norm() const { return sqrt(sum2_); }
+		template <typename fp_t>
+		fp_t norm<fp_t>::rms_norm() const
+		{
+			assert(is_nonempty());
+			return sqrt(sum2_ / fp_t(N_));
+		}
+
+		template class jtutil::norm<float>;
+		template class jtutil::norm<double>;
+
+		//******************************************************************************
+		//******************************************************************************
+		//******************************************************************************
+
+	} // namespace jtutil
+} // namespace AHFinderDirect