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.