When one uses package(rworldmap)
, when one is making a contour plot, like:
X <- Longitude
Y <- Latitude
contour(x=X, y=Y, z=Z, xlim=c(min(X),max(X)), ylim=c(min(Y),max(Y)), nlevels=15)
How can this contour plot appear on the world map?
It is actually quite simple, just add:
plot(getMap())
after your contour statement.