Refactor: extract EnsembleParameter into separate file.

ApplicationLibCode/ReservoirDataModel/RigEnsembleParameter.cpp

@@ -0,0 +1,108 @@
+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2017-     Statoil ASA
+//
+//  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.
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#include "RigEnsembleParameter.h"
+
+#include <algorithm>
+#include <cmath>
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+double RigEnsembleParameter::stdDeviation() const
+{
+    double N = static_cast<double>( values.size() );
+    if ( N > 1 && isNumeric() )
+    {
+        double sumValues        = 0.0;
+        double sumValuesSquared = 0.0;
+        for ( const QVariant& variant : values )
+        {
+            double value = variant.toDouble();
+            sumValues += value;
+            sumValuesSquared += value * value;
+        }
+
+        return std::sqrt( ( N * sumValuesSquared - sumValues * sumValues ) / ( N * ( N - 1.0 ) ) );
+    }
+    return 0.0;
+}
+
+//--------------------------------------------------------------------------------------------------
+/// Standard deviation normalized by max absolute value of min/max values.
+/// Produces values between 0.0 and sqrt(2.0).
+//--------------------------------------------------------------------------------------------------
+double RigEnsembleParameter::normalizedStdDeviation() const
+{
+    const double eps = 1.0e-4;
+
+    double maxAbs = std::max( std::fabs( maxValue ), std::fabs( minValue ) );
+    if ( maxAbs < eps )
+    {
+        return 0.0;
+    }
+
+    double normalisedStdDev = stdDeviation() / maxAbs;
+    if ( normalisedStdDev < eps )
+    {
+        return 0.0;
+    }
+    return normalisedStdDev;
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+bool RigEnsembleParameter::operator<( const RigEnsembleParameter& other ) const
+{
+    if ( this->variationBin != other.variationBin )
+    {
+        return this->variationBin > other.variationBin; // Larger first
+    }
+
+    return this->name < other.name;
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+QString RigEnsembleParameter::uiName() const
+{
+    QString stem = name;
+    QString variationString;
+    if ( isNumeric() )
+    {
+        switch ( variationBin )
+        {
+            case NO_VARIATION:
+                variationString = QString( " (No variation)" );
+                break;
+            case LOW_VARIATION:
+                variationString = QString( " (Low variation)" );
+                break;
+            case MEDIUM_VARIATION:
+                variationString = QString( " (Medium variation)" );
+                break;
+            case HIGH_VARIATION:
+                variationString = QString( " (High variation)" );
+                break;
+        }
+    }
+
+    return QString( "%1%2" ).arg( stem ).arg( variationString );
+}