HnswParam {BiocNeighbors}

R Documentation

The HnswParam class

Description

A class to hold parameters for the Hnsw algorithm for approximate nearest neighbor identification.

Usage

HnswParam(
  nlinks = 16,
  ef.construction = 200,
  directory = tempdir(),
  ef.search = 10,
  distance = "Euclidean"
)

Arguments

nlinks	Integer scalar, number of bi-directional links per element for index generation.
ef.construction	Integer scalar, size of the dynamic list for index generation.
directory	String specifying the directory in which to save the index.
ef.search	Integer scalar, size of the dynamic list for neighbor searching.
distance	A string specifying the distance metric to use.

Details

The HnswParam class holds any parameters associated with running the HNSW algorithm. This generally relates to building of the index - see buildHnsw for details.

Users can get or set values with the usual [[ syntax. All parameters listed in the constructor can be manipulated in this manner.

Value

An instance of the HnswParam class.

Author(s)

Aaron Lun

See Also

buildHnsw, for the index construction.

findHnsw and related functions, for the actual search.

BiocNeighborParam, for the parent class and its available methods.

Examples

(out <- HnswParam())
out[['nlinks']]

out[['nlinks']] <- 20L
out

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