Hi useR's I have created a simple map of the world using the following code: m <- map(xlim=c(-180,180), ylim=c(-90,90)) map.axes()
I then create a grid of dimension 36x72 using the code: map.grid(m, nx=72, ny=36, labels=FALSE, col="black") This gives 2592 grid cells. In a separate data set of dimension 36x72, I have 2592 temperature values (some missing values are present) ranging from -20 degrees F to 90 degrees F. My question is, how can I create a reasonable color scheme (low temperatures in light blue to higher temperatures in dark red) and plot the temperature colors in their respective grid cells on the map? Take this data matrix as some example data: T <- sample(-10:90, 2592, replace=TRUE) mat <- matrix(T, nrow=36, ncol=72) Thanks in advance, dxc13 -- View this message in context: http://www.nabble.com/Plotting-colors-on-a-world-map-tp23484524p23484524.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
