disrnd

1 Description
2 Syntax
3 Parameters
4 Return
5 Examples
6 Remark
7 See Also
8 header to Include
9 Reference

Description

Generates an array of random integers from a general discrete distribution, seeds and generator number passed explicitly

Syntax

int disrnd( long * v, uint n, const double * vP, const uint nSizeP, int iLowerIndex, bool bIsCdf )

Parameters

v: [output] Pointer to a double array, which contain the results
n: [input] The number of pseudo-random numbers to be generated. n>=1
vP: [input] The PDF or CDF of the distribution
nSizeP: [input] The number of values supplied in p defining the PDF or CDF of the discrete distribution
iLowerIndex: [input] The value of the variate, assumed to be a whole number, to which the probability in vP[0] corresponds
bIsCdf: [input] The bool value to indicate whether vP is the PDF or CDF of the distribution

Return

Return NE_NOERROR(0) on success, otherwise error.

Examples

EX1

//This example is to generate pseudo-random numbers from a general discrete distribution
int disrnd_ex1()
{
    int n = 20;
    long v[20];
    int iLowerIndex = -5;
    bool bIsCdf = false;
    double pP[11] = { 0.01, 0.02, 0.04, 0.08, 0.2, 0.3, 0.2, 0.08, 0.04, 0.02, 0.01 };
    uint nSizeP = 11;                   
 
    int nRet = disrnd( v, n, pP, nSizeP, iLowerIndex, bIsCdf);
 
    if(0 != nRet)
        return 0;
    
    for(int i=0;i<n;i++)
        printf("v[%d]: %d\n",i, v[i]);

    return 1;
}