private void add(@NotNull ValueTable table, @NotNull ValueSource variableValueSource) {
Assert.notNull(table, "ValueTable cannot be null");
Assert.notNull(variableValueSource, "variableValueSource cannot be null");
VectorSource vectorSource = variableValueSource.asVectorSource();
if (vectorSource == null) return;
for (Value value : vectorSource.getValues(summary.getVariableEntities(table))) {
add(value);
}
}
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();
}
private void add(@NotNull Value value) {
Assert.notNull(value, "Value cannot be null");
if (summary.empty) summary.empty = false;
if (value.isSequence()) {
if (value.isNull()) {
summary.frequencyDist.addValue(NULL_NAME);
} else {
//noinspection ConstantConditions
for (Value v : value.asSequence().getValue()) {
add(v);
}
}
} else {
summary.frequencyDist.addValue(value.isNull() ? NULL_NAME : value.toString());
}
}
public Builder filter(Integer offset, Integer limit) {
summary.setOffset(offset);
summary.setLimit(limit);
return this;
}
public Builder distinct(boolean distinct) {
summary.setDistinct(distinct);
return this;
}