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/* ----------------------------------------------------------------------
LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
https://www.lammps.org/, Sandia National Laboratories
Steve Plimpton, sjplimp@sandia.gov
Copyright (2003) Sandia Corporation. Under the terms of Contract
DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
certain rights in this software. This software is distributed under
the GNU General Public License.
See the README file in the top-level LAMMPS directory.
------------------------------------------------------------------------- */
#include "error_stats.h"
#include "fmt/format.h"
#include <cmath>
#include <iostream>
#include <string>
void ErrorStats::reset()
{
num = 0;
maxidx = -1;
sum = sumsq = maxerr = 0.0;
}
void ErrorStats::add(const double &val)
{
++num;
if (val > maxerr) {
maxidx = num;
maxerr = val;
}
sum += val;
sumsq += val * val;
}
double ErrorStats::avg() const
{
return (num > 0) ? sum / num : 0.0;
}
double ErrorStats::dev() const
{
return (num > 0) ? sqrt(sumsq / num - sum / num * sum / num) : 0.0;
}
std::ostream &operator<<(std::ostream &out, const ErrorStats &stats)
{
out << fmt::format("Average: {:10.3e} StdDev: {:10.3e} MaxErr: {:10.3e} @ item: {}",
stats.avg(), stats.dev(), stats.max(), stats.idx());
return out;
}
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