neutral_trips: neutral_trips

In mpadge/distdecay: Calculate Distance Decay Functions

Description

Generate a neutral trip matrix by fitting a spatial interaction model. If no distance decay parameter, k, is given, the value is derived by maximising the fit of the spatial interaction model to the observed trip matrix.

Usage

neutral_trips(distmat, tripmat, k = NULL)

Arguments

distmat	A station-to-station distance matrix, generally obtained from internal distmats data
tripmat	A station-to-station trip matrix, generally obtained from internal tripmats data
k	Value of exponential decay used in spatial interaction model; if not specified, value is determined by maximising fit between neutral and observed models.

Value

A matrix equivalent to tripmat, but in which values are generated by fitting a spatial interaction model.

mpadge/distdecay documentation built on May 24, 2019, 6:08 a.m.