Count produces a new ValueCounts by counting repetitions of values in the input data.

FromMap creates a new ValueCounts object and initialises its counts from the given map.

FromPairs converts a list of (value, count) pairs back into ValueCounts.

New creates a new empty ValueCounts object.

Pair stores a single value and associated count pair.

ValueCounts stores unordered counts of integer values as a map from value (int) to count (int).