SDIcomputer: SDIcomputer() is a helper function to compute given SDI...

In rSDI: Spatial Dispersion Index (SDI) Family of Metrics for Spatial/Geographic Networks

SDIcomputer() is a helper function to compute given SDI variant for the given graph object. Not intended for explicit use. Called automatically by the 'SDI()' function.

Description

SDIcomputer() is a helper function to compute given SDI variant for the given graph object. Not intended for explicit use. Called automatically by the 'SDI()' function.

Usage

SDIcomputer(g, level, weight.use, directionality, return.value = FALSE)

Arguments

g	An igraph object.
level	The level to calculate the SDI. 'network' or 'vertex'.
weight.use	'weighted' or 'unweighted'.
directionality	'undirected', 'in', 'out', or 'all'.
return.value	Logical. If TRUE, return the computed SDI value instead of modifying the graph object.

Value

If return.value is TRUE, returns the computed SDI value. Otherwise, returns the modified graph object.

Examples

TMgraph <- igraph::graph_from_data_frame(TurkiyeMigration.flows,
      directed=TRUE, TurkiyeMigration.nodes)
SDIcomputer(TMgraph,"vertex","weighted","in")

rSDI documentation built on Aug. 23, 2025, 1:11 a.m.