You are here: Symbol Reference > Dew Namespace > Dew.Stats Namespace > Dew.Stats.Units Namespace > Classes > RegModels Class > RegModels Methods > ExpEval Method > RegModels.ExpEval Method ([In] double[], [In] TVec, [In] TVec)
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RegModels.ExpEval Method ([In] double[], [In] TVec, [In] TVec)
RegModels Class  RegModels Members  Dew.Stats.Units Namespace  ExpEval Method  Example  See Also
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Evaluates b[0]*Exp(b[1]*X) for given values in X vector, parameters in B array, and returns the results in XHat vector.

Syntax
C#
Visual Basic
public static void ExpEval([In] double[] B, [In] TVec X, [In] TVec YHat);
Remarks

Size and Complex properties of XHat vector are adjusted automatically. 

Note Use this version if you want to evaluate exponential function for multiple values at the same time. This is a lot faster than calling single value version for each x value.

See Also
Example

Evaluate exponential function for multiple values at the same time.

using Dew.Math; using Dew.Stats.Units; namespace Dew.Examples { private void Example(Steema.TeeChart.Styles.Line line1) { Vector X = new Vector(100); Vector Y = new Vector(0); X.Ramp(-5.0, 0.05); // x= -5.0, -4.95, ... -0.05 // Y = b[0] + b[1]*X RegModels.ExpEval(new double[] {1,3},X,Y); MtxVecTee.DrawValues(X,Y,line1,false); } }
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