Java graphics - JavaTech: An Introduction to Scientific and Technical Computing with Java - page 198

public int getValue (int bin - num) {
if (bin - num < 0)
return fUnderflows;
else if (bin - num >= fNumBins)
return fOverflows;
else
return fBins[bin - num];

}

/**
* Get the average and standard deviation of the
* distribution of entries.
* @return double array
*/
public double [] getStats () {

int total = 0;
double wt - total = 0;
double wt - total2 = 0;
double [] stat = new double[2];
double bin - width = fRange/fNumBins;

for (int i = 0; i < fNumBins; i++) {
total + = fBins[i];
double bin - mid = (i - 0.5) * bin - width + fLo;
wt - total + = fBins[i] * bin - mid;
wt - total2 + = fBins[i] * bin - mid * bin - mid;

}

if (total > 0) {
stat[0] = wt - total / total;
double av2 = wt - total2 / total;
stat[1] = Math.sqrt (av2 - stat[0] * stat[0]);

}
else {
stat[0] = 0.0;
stat[1] = -1.0;

}

return stat;
} // getStats

/**
* Create the histogram from a user provided array
* along with the under and overflow values.