frequency 1.0.1

A trait for types that keep track of the counts of things.
Documentation

The Frequency trait represents types that keep track of the observed counts of items.

Usage

Add frequency to your Cargo.toml:

[dependencies]
frequency = "^1.0.0"

To use the Frequency interface for types implementing Frequency, you must import the Frequency trait:

extern crate frequency;

use frequency::Frequency;

Implementations of Frequency are provided by the frequency-btreemap, frequency-btreemap, and frequency-btreemap crates.