[FORGED] specifying axis intervals in maptools?
On 26/09/19 8:52 AM, Rodrigo Plei wrote:
Dear colleagues, How to I specify latitude and longitude intervals on x and y axis in a map using the maptools package? Suppose that I plotted a map and using the argument "axes = TRUE", I got the y (latitude) axis plotted to show "-23.6 -23.4 -23.2 -23 -22.8 -22.6" (i.e. 0.2 intervals), but I was actually wanting to see "-23.6 -23.2 -22.8 " (0.4 intervals). How can I customize the intervals? Any help will be greatly appreciated.
Given that I am not misunderstanding you (always a distinct possibility for me!) I believe that all you need to do is set axes=FALSE in your initial call, then add the axes using something like: axis(side=1) axis(side=2,at=c(-23.6, -23.2, -22.8, <whatever?)) Can't say for sure without a reproducible example. HTH cheers, Rolf Turner
Honorary Research Fellow Department of Statistics University of Auckland Phone: +64-9-373-7599 ext. 88276