Module rand::seq::index

Available on crate feature alloc only.

Low-level API for sampling indices

Enums

IndexVec

A vector of indices.

IndexVecIntoIter

Return type of IndexVec::into_iter.

IndexVecIter

Return type of IndexVec::iter.

Functions

sample

Randomly sample exactly amount distinct indices from 0..length, and return them in random order (fully shuffled).

sample_weightedstd

Randomly sample exactly amount distinct indices from 0..length, and return them in an arbitrary order (there is no guarantee of shuffling or ordering). The weights are to be provided by the input function weights, which will be called once for each index.