You are here: Symbol Reference > Dew Namespace > Dew.Stats Namespace > Dew.Stats.Units Namespace > Classes > Statistics Class > Statistics Methods > PoissonFit Method > Statistics.PoissonFit Method ([In] TVec, out double, double[], double)
Dew Stats for .NET
ContentsIndexHome
PreviousUpNext
Statistics.PoissonFit Method ([In] TVec, out double, double[], double)
Statistics Class  Statistics Members  Dew.Stats.Units Namespace  PoissonFit Method  Example  See Also
Collapse All

Calculate parameters for Poisson distributed values.

Syntax
C#
Visual Basic
public static void PoissonFit([In] TVec X, out double lambda, ref double[] lambdaConfInt, double Alpha);
Parameters
Parameters 
Description 
[In] TVec X 
Stores data which is assumed to be Poisson distributed. 
out double lambda 
Returns Poisson distribution parameter estimator. 
ref double[] lambdaConfInt 
Lambda (1-Alpha)*100 percent confidence interval. 
double Alpha 
Confidence interval percentage. 
See Also

RandomPoisson, PoissonStat

Example

The following example generates 500 random Poisson distributed values and then uses PoissonFit routine to extract used Lambda parameter

using Dew.Math; using Dew.Stats; using Dew.Stats.Units; namespace Dew.Examples; { private void Example() { Vector vec1 = new Vector(500,false); // first, generate 500 randomly Poiss. distributed // numbers with parameter lambda=1.17 StatRandom.RandomPoisson(1.17,vec1,-1); // Now, extract the lambda and its 95% // confidence interval double resLambda; double[] CILambda = new double[2]; Statistics.PoissonFit(vec1,out resLambda,out CILambda,0.05); } }
Group
Links
Copyright (c) 1999-2024 by Dew Research. All rights reserved.
Contents | Index | Home
What do you think about this topic? Send feedback!