[R] plotting a grid with color on a map
dxc13 at health.state.ny.us
Wed May 13 05:30:16 CEST 2009
I have posted similar questions regarding this topic, but I just can't seem
to get over the hump and find a straightforward way to do this. I have
attached my file as a reference.
Basically, the attached file is a 5 degree by 5 degree grid of the the world
(2592 cells), most of them are NA's. I just want to be able to plot this
grid over a world map and color code the cells. For example, if a cell has
a temperature less than 20 degrees it will be blue, 21 to 50 green color,
51-70 orange, 71+ red colored cells. For any NAs, they should be colored
I know how to create a map of the world using map() and add a grid to it
using map.grid(), but I can't color code the cells the way I need. Is there
a way to do this in R?
dxc13 http://www.nabble.com/file/p23514804/time1test.txt time1test.txt
View this message in context: http://www.nabble.com/plotting-a-grid-with-color-on-a-map-tp23514804p23514804.html
Sent from the R help mailing list archive at Nabble.com.
More information about the R-help