plot_inter: Display a Spatial Interaction Function

In riatelab/potential: Implementation of the Potential Model

Display a Spatial Interaction Function

Description

Display a spatial interaction function.

Usage

plot_inter(fun = "e", span, beta, limit = span * 5)

Arguments

fun	spatial interaction function. Options are "p" (pareto, power law) or "e" (exponential). For pareto the interaction is defined as: (1 + alpha * mDistance) ^ (-beta). For "exponential" the interaction is defined as: exp(- alpha * mDistance ^ beta). The alpha parameter is computed from parameters given by the user (beta and span).
span	distance where the density of probability of the spatial interaction function equals 0.5.
beta	impedance factor for the spatial interaction function.
limit	maximum distance used to retrieved x points, in map units.

Value

a plot

Examples

plot_inter(fun = "e", span = 2000, beta = 2, limit = 4000)
plot_inter(fun = "p", span = 2000, beta = 2, limit = 20000)

riatelab/potential documentation built on Jan. 2, 2023, 7:15 a.m.