dd_decay_fns: dd_decay_fns

In mpadge/distdecay: Calculate Distance Decay Functions

Description

dd_decay_fns

Usage

dd_decay_fns(city, from = TRUE)

Arguments

city	City for which decay parameters are to be calculated
from	Plot covariance or MI values for trips from each station. If FALSE, plot equivalent values for trips to each station.

Value

A data.frame of statistics for both straight-line distances (_str) and OpenStreetMap network distances (_osm) for the exponential decay function, exp (-(d / k) ^ b), of:

• k, the width of the exponential;

• b, the exponent; and

• ss, a standardised sum of sqaured residuals of the model fit

k-values quantifying the widths of exponential fits to the decay functions.

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