Quintiq file version 2.0
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#parent: #root
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Method UpdateStatistics (
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MathematicalProgram program,
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Boolean isautoscalingenabled
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)
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{
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Description: 'Writes attributes related to numerical statistics. This should be done after optimizer run finished for current level.'
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TextBody:
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[*
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statistics := program.Statistics();
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//result side
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this.Kappa( statistics.Kappa() );
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this.Remark( program.Remark() );
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this.PrimalInfeasibility( statistics.MaxPrimalInfeasibility() );
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this.DualInfeasibility( statistics.MaxDualInfeasibility() );
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this.PrimalResidual( statistics.MaxPrimalResidual() );
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this.DualResidual( statistics.MaxDualResidual() );
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//definition side
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this.MinCoefficient( statistics.MinimumConstraintNonZero() );
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this.MaxCoefficient( statistics.MaximumConstraintNonZero() );
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this.MinGoalCoefficient( statistics.MinimumObjectiveNonZero() );
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this.MaxGoalCoefficient( statistics.MaximumObjectiveNonZero() );
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this.MinRHS( statistics.MinimumRHSNonZero() );
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this.MaxCoefficientRatio( statistics.MaximumCoefficientRatio() );
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if( this.MinRHS().IsInfinite() ) //prevent MaxReal from appearing
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{
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this.MinRHS( 0.0 );
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}
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this.MaxRHS( statistics.MaximumRHSNonZero() );
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// To improve the performance, the min/max variable value statistics are only updated in autoscaling runs
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if( isautoscalingenabled )
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{
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sets := selectvalues( program, Variables, var, var.Enabled() and guard( var.OptimalValue() <> 0, false ), abs ( var.OptimalValue() ) );
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sets := sets.Sort();
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if( sets.Size() > 0 )
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{
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this.MinVariableValue( sets.Element( 0 ) );
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this.MaxVariableValue( sets.Element( sets.Size() - 1 ) );
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}
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}
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*]
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}
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