polys.map: Geographic map with regions defined as polygons

In GJRM: Generalised Joint Regression Modelling

Geographic map with regions defined as polygons

Description

This function produces a map with geographic regions defined by polygons. It is essentially the same function as polys.plot() in mgcv but with added arguments zlim and rev.col and a wider set of choices for scheme.

Usage

polys.map(lm, z, scheme = "gray", lab = "", zlim, rev.col = FALSE, ...)

Arguments

lm	Named list of matrices where each matrix has two columns. The matrix rows each define the vertex of a boundary polygon.
z	A vector of values associated with each area (item) of lm.
scheme	Possible values are "heat", "terrain", "topo", "cm" and "gray", indicating how to fill the polygons in accordance with the value of z.
lab	label for plot.
zlim	If missing then the range of z will be chosen using pretty(z) otherwise the range provided will be used.
rev.col	If TRUE then coloring scheme is reversed.
...	other arguments to pass to plot.

Details

See help file of polys.plot in mgcv.

Value

It produces a plot.

Author(s)

Maintainer: Giampiero Marra [e-mail]

GJRM documentation built on Oct. 25, 2024, 5:07 p.m.