threshold_adjacency: Threshold Adjacency

In bbuchsbaum/neighborweights: Constructing Adjacency Matrices Based on Spatial and Feature Similarity

Threshold Adjacency

Description

This function extracts the k-nearest neighbors from an existing adjacency matrix. It returns a new adjacency matrix containing only the specified number of nearest neighbors.

Usage

threshold_adjacency(A, k = 5, type = c("normal", "mutual"), ncores = 1)

Arguments

A	An adjacency matrix representing the graph.
k	An integer specifying the number of neighbors to consider (default: 5).
type	A character string indicating the type of k-nearest neighbors graph to compute. One of "normal" or "mutual" (default: "normal").
ncores	An integer specifying the number of cores to use for parallel computation (default: 1).

Value

A sparse adjacency matrix containing only the specified number of nearest neighbors.

Examples

A <- matrix(runif(100), 10, 10)
A_thresholded <- threshold_adjacency(A, k = 5)

bbuchsbaum/neighborweights documentation built on April 1, 2024, 8:41 p.m.