I'd like to add the boundary lines for Scotland into a filledContour plot I have of a raster file. so my code currently looks like:
filledContour(neap_hu3, levels=seq(-1,8,0.25), col=rgb.palette(36),
plot.title = title(xlab="Longitude", ylab="Latitude"),
plot.axes={ axis(1); axis(2); contour(neap_hu3, add=T )}
)
where neap_hu3 is my raster file.
I've tried adding map(add=TRUE) but that didn't work. also tried plotting a shapefile of the boundary after the filledContour plot but that didn't work.
anyone has any suggestions? will be greatly appreciated :)
