/**
* Normalizes branch sizes so they contain frequencies (stored in "props") instead of counts
* (stored in "dist").
*
* <p>Overwrites the supplied "props"!
*
* <p>props.length must be == dist.length.
*/
protected static void countsToFreqs(double[][] dist, double[] props) {
for (int k = 0; k < props.length; k++) {
props[k] = Utils.sum(dist[k]);
}
if (Utils.eq(Utils.sum(props), 0)) {
for (int k = 0; k < props.length; k++) {
props[k] = 1.0 / (double) props.length;
}
} else {
FastRfUtils.normalize(props);
}
}
/**
* Normalizes branch sizes so they contain frequencies (stored in "props") instead of counts
* (stored in "dist"). Creates a new double[] which it returns.
*/
protected static double[] countsToFreqs(double[][] dist) {
double[] props = new double[dist.length];
for (int k = 0; k < props.length; k++) {
props[k] = Utils.sum(dist[k]);
}
if (Utils.eq(Utils.sum(props), 0)) {
for (int k = 0; k < props.length; k++) {
props[k] = 1.0 / (double) props.length;
}
} else {
FastRfUtils.normalize(props);
}
return props;
}