plotmatch: Plot Optimal Matching between Two Point Patterns
In ttbary: Barycenter Methods for Spatial Point Patterns

plotmatch

R Documentation

Plot Optimal Matching between Two Point Patterns

Description

After calling ppdist with argument ret_matching = TRUE in a situation where it makes sense to assign to the points of the patterns xi and eta coordinates in R^2, this function may be used to display the result graphically.

Usage

plotmatch(
  xi,
  eta,
  dmat,
  res,
  penalty,
  p = 1,
  cols = c(2, 4),
  pchs = c(1, 1),
  cexs = c(1, 1),
  ...
)

Arguments

`xi, eta`	objects of class `ppp`.
`dmat`	a matrix specifying in its (i,j)-th entry the distance from the i-th point of xi to the j-th point of eta.
`res`	the object returned by the call to `ppdist` with `ret_matching = TRUE`.
`penalty`	a positive number. The penalty for adding/deleting points.
`p`	a number >0. The order of the TT- or RTT-distance computed.
`cols, pchs, cexs`	vectors of length 2 specifying the corresponding graphic parameters col, pch and cex for plotting the two point patterns.
`...`	further graphic parameters passed to the code that draws the line segments between the points.

Details

The default use-case is to plot a matching obtained with ppdist. In that case dmat, penalty and p should be the same as in the call to ppdist. These objects are used to display additional information about the matching.