private float[] calculateTimeToHomeRate(TimeToGoHome timeToGoHome) {
if (timeToGoHome == null || timeToGoHome.isEmpty()) {
return NumUtils.newEmptyFloatArray(RANGE_DIVIDER);
}
final int testCount = timeToGoHome.getTestCount();
final int range = testCount / RANGE_DIVIDER;
final int[] occ = NumUtils.newEmptyIntArray(RANGE_DIVIDER);
for (int i = 0; i < timeToGoHome.size(); i++) {
final int index = timeToGoHome.get(i) / range;
occ[index]++;
}
return NumUtils.calculateProbability(occ);
}
