/* -*- c++ -*- */
/*
 * gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
 *
 *  Copyright (C) 2016, Libre Space Foundation <http://librespacefoundation.org/>
 *
 *  This program 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.
 *
 *  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef INCLUDE_SATNOGS_UTILS_H_
#define INCLUDE_SATNOGS_UTILS_H_


namespace gr
{

namespace satnogs
{

/**
 * Computes the Mean Absolute Percentage Error
 * @param ref the reference value
 * @param estimation the estimated value
 * @return the mean absolute percentage error
 */
static inline double
mape(double ref, double estimation)
{
  return std::abs(ref - estimation) / ref;
}

}  // namespace satnogs


}  // namespace gr



#endif /* INCLUDE_SATNOGS_UTILS_H_ */