Calculate network edge euclidean distances

Calculate network edge euclidean distances

Usage

edge_distances(x, y, x_node_ids = NULL)

Arguments

x

matrix of nodes info with coords. Rows should be samples, Cols should be variables

y

network data.table with from and to cols. Usually integer indices matching the rows of x.

x_node_ids

if y is indexed by character in from and to cols, then the node IDs that apply to the coords in x must be supplied as a character vector

Value

numeric

Examples

m <- matrix(c(0, 0, 0, 1, 1, 1, 3, 2, 4), byrow = TRUE, nrow = 3)
edges <- data.table::data.table(
    from = c(1, 1),
    to = c(2, 3)
)

edge_distances(m, edges)
#> [1] 1.732051 5.385165