/////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2011-     Statoil ASA
//  Copyright (C) 2013-     Ceetron Solutions AS
//  Copyright (C) 2011-2012 Ceetron AS
//
//  ResInsight 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.
//
//  ResInsight 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 at <http://www.gnu.org/licenses/gpl.html>
//  for more details.
//
/////////////////////////////////////////////////////////////////////////////////

#pragma once

#include <cmath>
#include <numeric>
#include <vector>

//==================================================================================================
//
//
//
//==================================================================================================
class RiaStatisticsTools
{
public:
    template <class NumberType>
    static bool isInvalidNumber( NumberType value )
    {
        return !isValidNumber<NumberType>( value );
    }

    template <class NumberType>
    static bool isValidNumber( NumberType value )
    {
        if ( std::isinf( value ) ) return false;
        if ( std::isnan( value ) ) return false;

        return true;
    }

    static double pearsonCorrelation( const std::vector<double>& xValues, const std::vector<double>& yValues );
};