R: Build a nearest-neighbor index

buildIndex {BiocNeighbors}

R Documentation

Build a nearest-neighbor index

Build indices for nearest-neighbor searching with different algorithms.

buildIndex(X, ..., BNPARAM)

`X`	A numeric matrix where rows correspond to data points and columns correspond to variables (i.e., dimensions).
`...`	Further arguments to be passed to individual methods. This is guaranteed to include `transposed`.
`BNPARAM`	A BiocNeighborParam object specifying the type of index to be constructed. This defaults to a KmknnParam object if no argument is supplied.

Supplying a KmknnParam object as BNPARAM will dispatch to buildKmknn.

Supplying a VptreeParam object as BNPARAM will dispatch to buildVptree.

Supplying an AnnoyParam object as BNPARAM will dispatch to buildAnnoy.

Supplying an HnswParam object as BNPARAM will dispatch to buildHnsw.

A BiocNeighborIndex object containing indexing structures for the specified algorithm.

Aaron Lun

Y <- matrix(rnorm(100000), ncol=20)
(k.out <- buildIndex(Y))
(a.out <- buildIndex(Y, BNPARAM=AnnoyParam()))

[Package BiocNeighbors version 1.5.2 Index]