nearest_neighbor_search: Nearest neighbor search

In distances: Tools for Distance Metrics

Nearest neighbor search

Description

nearest_neighbor_search searches for the k nearest neighbors of a set of query points.

Usage

nearest_neighbor_search(
  distances,
  k,
  query_indices = NULL,
  search_indices = NULL,
  radius = NULL
)

Arguments

distances	A distances object.
k	The number of neighbors to search for.
query_indices	An integer vector with point indices to query. If NULL, all data points in distances are queried.
search_indices	An integer vector with point indices to search among. If NULL, all data points in distances are searched over.
radius	Restrict the search to a fixed radius around each query. If fewer than k search points exist within this radius, no neighbors are reported (indicated by NA).

Value

A matrix with point indices for the nearest neighbors. Columns in this matrix indicate queries, and rows are ordered by distances from the query.

distances documentation built on Nov. 24, 2025, 10:16 a.m.