/**
* Creates a frequency table. The number of items in each class is returned. Classes are defined
* by the limit and resolution. E.g. for a limit of 1200 with a resolution of 400 there are 3
* classes: [0-400[, [400-800[ and [800-1200[.
*
* @param values the data to distribute over the bins/classes.
* @param classWidth the resolution or the with of the classes
* @param start the starting value
* @param stop the stopping value
* @return The number of items in each class
*/
public static Histogram createFrequencyTable(
final List<Double> values, final double classWidth, final double start, final double stop) {
final Histogram histogram = new Histogram(start, stop, (int) ((stop - start) / classWidth));
for (final Double value : values) {
histogram.add(value);
}
assert histogram.getSumFreq() == values.size()
: "Number of items in bins does no" + "t correspond with total number of items";
return histogram;
}
