GADistribution.cpp

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// Distribution.cpp: implementation of the GADistribution class.
//
 
#include "GADistribution.h"
#include "math.h"
#include <stdlib.h>
 
// Construction/Destruction
 
GADistribution::GADistribution()
{
        
}
 
GADistribution::GADistribution(int nn)
{
    n = nn;
    e.resize(n);
    s.resize(n);
}
 
GADistribution::~GADistribution()
{
    
}
 
GADistribution::GADistribution(const GADistribution &C)
{
    n = C.n;
    e.resize(n);
    s.resize(n);
    for (int i=0; i<n; i++)
    {
        e[i] = C.e[i];
        s[i] = C.s[i];
    }
 
 
}
 
GADistribution GADistribution::operator = (const GADistribution &C)
{
    n = C.n;
    e.resize(n);
    s.resize(n);
    for (int i=0; i<n; i++)
    {
        e[i] = C.e[i];
        s[i] = C.s[i];
    }
 
    return *this;
 
}
 
int GADistribution::GetRand()
{
    double x = GetRndUniF(0,1);
    int ii = 0;
    for (int i=0; i<n-1; i++)
    {   
        if (x<e[i] && x>s[i])
            ii = i;
    }
    return ii;
 
}
 
 
double GADistribution::GetRndUniF(double xmin, double xmax)
{
    double a = double(rand());
    double k = double(RAND_MAX);
    return a/k*(xmax-xmin) + xmin;
}