source: trunk/yat/omic/phred.cc @ 3325

// $Id: phred.cc 3325 2014-10-07 01:44:54Z peter $

/*
  Copyright (C) 2014 Peter Johansson

  This file is part of the yat library, http://dev.thep.lu.se/yat

  The yat library is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License as
  published by the Free Software Foundation; either version 3 of the
  License, or (at your option) any later version.

  The yat library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with yat. If not, see <http://www.gnu.org/licenses/>.
*/

#include <config.h>

#include "phred.h"

#include <cmath>

namespace theplu {
namespace yat {
namespace omic {

  double phred(double p)
  {
    return - 10 * std::log10(p);
  }


  double phred_inv(double x)
  {
    return std::pow(10.0, -x/10.0);
  }

}}}