Struct SeedNtHash 

pub struct SeedNtHash<'a> { /* private fields */ }

Struct for computing spaced-seed ntHash values in a re-computational manner. Can handle multiple seeds and generates multiple hashes per k-mer.

Implementations

impl<'a> SeedNtHash<'a>

pub fn new( seq: &'a [u8], seed_masks: &[String], num_hashes_per_seed: usize, k: u16, start_pos: usize, ) -> Result<Self>

Creates a new hasher from a sequence and spaced-seed masks.

Errors

Returns an error if k is zero, the sequence is too short, or a mask is invalid.

pub fn from_care_indices( seq: &'a [u8], seeds: Vec<Vec<usize>>, num_hashes_per_seed: usize, k: u16, start_pos: usize, ) -> Result<Self>

Alternative constructor using pre-parsed care indices (skips mask parsing).

pub fn pos(&self) -> usize

Returns the current position in the sequence.

pub fn hashes(&self) -> &[u64]

Returns the current set of hash values.

pub fn roll(&mut self) -> bool

Advances the iterator by one position. On first call, searches for the first valid k-mer (initialization).