distance_columns {distances}

Distance matrix columns

Description

distance_columns extracts columns from the distance matrix.

Usage

distance_columns(distances, column_indices, row_indices = NULL)

Arguments

distances

A distances object.

column_indices

An integer vector with point indices indicating which columns to be extracted.

row_indices

If NULL, complete rows will be extracted. If integer vector with point indices, only the indicated rows will be extracted.

Details

If the complete distance matrix is desired, distance_matrix is faster than distance_columns.

Value

Returns a matrix with the requested columns.