Fix extreme values on legend
You can use the at argument, as in spplot(obj, at = c(0,1,2,3)) to specify the values at which colours change. Its range determines the value range.
On 10/14/2014 12:56 PM, Jue Lin-Ye wrote:
Greetings! I have been using spplot to draw maps of the NW Mediterranean and sub-regions. I would like to compare them, so I need the same range of values to be displayed on the legends. I know that I can manually fix the *colors*, but I do not know if I can fix the extreme *values* on spplot (I know that I can do so with image.plot, but it is not what I desire). Thank you in advance!
Edzer Pebesma, Co-Editor-in-Chief Computers & Geosciences Institute for Geoinformatics (ifgi), University of M?nster Heisenbergstra?e 2, 48149 M?nster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 490 bytes Desc: OpenPGP digital signature URL: <https://stat.ethz.ch/pipermail/r-sig-geo/attachments/20141014/d8e105c8/attachment.bin>