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legend position

7 messages · Philippe Massicotte, Carl Witthoft, David L Carlson

Carl Witthoft
# 
See ?legend .   you can add a legend directly to an existing plot.  An
example:

legend('topright',c('hot','cold'),lty=1,col=c('red','green'),bg='white')

Now if you're trying to place the legend outside the plot area (i.e. in some
other part of the window),
you'll need to invoke par(xpd=TRUE) . See the help at ?par .


Filoche wrote

            

      
      
      
    

        

      
      
    

        
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      Carl Witthoft
    

    

      
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It occurs to me that perhaps you're referring to the 'color bar' on the right
of the plot.  AFAIK you cannot get at that from the raster::plot method.  
However  lattice::levelplot does allow you to manipulate or remove that
colorbar.




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      David L Carlson
    

    

      
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It is not straightforward unless you want the legend in the
right or the bottom margins. To put the legend inside the plot
region it is simplest to use image() to plot the raster file and
then image.plot(legend.only=TRUE) to add the legend. In addition
to reading the help page for plot{raster}, you also need the
pages for image{raster} and image.plot{fields}. Here are two
simple examples.

image(r,  col=rev(terrain.colors(255)))
plot(r, horizontal=TRUE, smallplot=c(.15, .5, .84, .86),
legend.only=TRUE)

image(r,  col=rev(terrain.colors(255)))
plot(r, smallplot=c(.15, .17, .5, .85), legend.only=TRUE)

-------------------------------------
David L Carlson
Department of Anthropology
Texas A&M University
College Station, TX 77840-4352

-----Original Message-----
From: r-help-bounces at r-project.org
[mailto:r-help-bounces at r-project.org] On Behalf Of philippe
massicotte
Sent: Monday, December 2, 2013 1:22 PM
To: r-help at r-project.org
Subject: [R] legend position

Hi all. 
I'm ploting a raster and I can't find the proper way to move the
legend. For example,
r = raster(system.file("external/test.grd",
package="raster"))plot(r)
How can I put the legend at the desired position?
Thank in advance,Phil 		 	   		  

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