Quintiq file version 2.0
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#parent: #root
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Method GenerateDemandRealization
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{
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Description: 'Generates a random demand realization based on the expected demand and the demand uncertainty'
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TextBody:
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[*
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// Martijn Nov-8-2016 (created)
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expectedqty := this.ExpectedQuantity();
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demanduncertaintypercentage := this.DemandUncertaintyPercentage() / 100;
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// The NormSInv method is much faster. However, it is very inaccurate <3% or >97%
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// this.Quantity( MacroPlan::RandNormal( expectedqty, demanduncertaintypercentage * expectedqty ) );
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// Please see Rescue 32832 or SCP 8783. Normal random variate generation will be enabled in the upcoming releases. Please update the code when it is implemented - updated.
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// The demand realization is equal to the expected sales demand quantity
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// plus the randomly generated factor times the demand uncertainty percentage times the expected sales demand quantity
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normal := NormalDistribution::Construct( expectedqty, demanduncertaintypercentage * expectedqty );
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value := normal.Random();
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// The sales demand quantity cannot be negative
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value := maxvalue( 0.0, value );
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this.Quantity( value );
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*]
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InterfaceProperties { Accessibility: 'Module' }
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}
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