34 lines
887 B
C++
34 lines
887 B
C++
#include "rng_abstract.h"
|
|
|
|
#include <QDebug>
|
|
|
|
QVector<int> RNG_Abstract::makeNumbersVector(int n, int min, int max)
|
|
{
|
|
const int bins = max - min + 1;
|
|
QVector<int> result(bins);
|
|
for (int i = 0; i < n; ++i) {
|
|
int number = rand(min, max);
|
|
if ((number < min) || (number > max)) {
|
|
qDebug() << "rand(" << min << "," << max << ") returned " << number;
|
|
} else {
|
|
result[number - min]++;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
double RNG_Abstract::testRandom(const QVector<int> &numbers) const
|
|
{
|
|
int n = 0;
|
|
for (int i = 0; i < numbers.size(); ++i) {
|
|
n += numbers[i];
|
|
}
|
|
double expected = (double)n / (double)numbers.size();
|
|
double chisq = 0;
|
|
for (int i = 0; i < numbers.size(); ++i) {
|
|
chisq += ((double)numbers[i] - expected) * ((double)numbers[i] - expected) / expected;
|
|
}
|
|
|
|
return chisq;
|
|
}
|