private void compute() {
long max = 0;
Iterator<String> concat =
summary.distinct //
? freqNames(summary.frequencyDist) // category names, null values and distinct values
: Iterators.concat(
categoryNames(),
ImmutableList.of(NULL_NAME).iterator()); // category names and null values
// Iterate over all category names including or not distinct values.
// The loop will also determine the mode of the distribution (most frequent value)
while (concat.hasNext()) {
String value = concat.next();
long count = summary.frequencyDist.getCount(value);
if (count > max) {
max = count;
summary.mode = value;
}
summary.frequencies.add(
new Frequency(
value, summary.frequencyDist.getCount(value), summary.frequencyDist.getPct(value)));
}
summary.n = summary.frequencyDist.getSumFreq();
}
