[R-sig-Geo] How does col.regions work in spplot?

[Ken Takagi]

Mathias Seibert <mathias.seibert <at> gfz-potsdam.de> writes:

> 
> Dear Ken,
> 
> if I understand correctly, you want to create a plot without highlight 
> borders. This can be achieved by setting col="transparent".
> using your example, try:
> spplot(nc, zcol = "rand_data", col.regions = heat.colors(100), 
> col="transparent", colorkey = T)
> 
> I don't know how to set the colours of the borders individually, but I 
> think the solution above produces a plot looking like you wanted it.
> 
> Cheers,
> Mathias
> 

Mathias,
Thanks a lot!  It seems to do what I needed.  I was worried it was going to
leave a gap between each of the counties, but that doesn't appear to be the
case. Much more elegant than my solution.  

Ken