spatsurv (version 1.8-2)

spplot_compare: spplot_compare function

Description

A function to compare two SpatialPolgonsDataFrame or SpatialPointsDataFrame objects using a unified legend for the variable of interest in both

Usage

spplot_compare(
  x,
  y,
  what,
  what1 = what,
  palette = brewer.pal(9, "Oranges"),
  legpos = "topleft",
  border = NA,
  fun = identity,
  t1 = "",
  t2 = "",
  bw = FALSE,
  ...
)

Value

produces a plot comparing x[[what]] and y[[what1]]

Arguments

x

a SpatialPolgonsDataFrame or a SpatialPointsDataFrame

y

a SpatialPolgonsDataFrame or a SpatialPointsDataFrame

what

the name of the variable from x to plot

what1

the name of the variable from y to plot. default is to plot the variable of the same name

palette

the palette, can either be a vector of names of colours, or a vector of colours produced for example by the brewer.pal function.

legpos

the position of the legend, options are 'topleft', 'topright', 'bottomleft', 'bottomright'

border

see ?spplot

fun

an optional function of the data to plot, default is the identity function

t1

title for the plot of x

t2

title for the plot of y

bw

Logical. Plot in black/white/greyscale? Default is to produce a colour plot. Useful for producing plots for journals that do not accept colour plots.

...

other arguments to be passed to the plot function