R: construct a umap.knn object describing nearest neighbors

umap.knn {umap} | R Documentation

## construct a umap.knn object describing nearest neighbors

### Description

construct a umap.knn object describing nearest neighbors

### Usage

    umap.knn(indexes, distances)

### Arguments

`indexes` | matrix, integers linking data points to nearest neighbors
`distances` | matrix, distance values between pairs of points specified in the matrix of indexes

### Value

object of class umap.knn, which is a list with matrices with indexes of nearest neighbors and distances to those neighbors

### Examples

    # this example describes a set of three data points (indexes 1,2,3)
    # which are equidistant from each other. Hence the distance between
    # pairs (i, j) is 0 for i=j and 1 otherwise.
    three.indexes = matrix(c(1,2,3,
                             2,1,3,
                             3,1,2), nrow=3, ncol=3)
    three.distances = matrix(c(0, 1, 1,
                               0, 1, 1,
                               0, 1, 1), nrow=3, ncol=3)

    umap.knn(three.indexes, three.distances)

[Package umap version 0.2.7.0 Index]