Rhelpers:
Having a problem solving this. I have an xyplot call that looks
like this:
print(xyplot(temp_species_EAM_Pred_Pop$x+temp_species_NULL_Pred_Pop$x~temp_species_EAM_Pred_Pop$Action,main=current_species,
xlab="Action",ylab="Predicted Pop",
xlim=c(xmin,xmax),ylim=c(ymin,ymax),
auto.key=list(corner=c(1,1))))
This is just a scatterplot with two response variables sharing the same
predictor variable (temp_species_EAM_Pred_Pop$Action). Right now, the
key has the words "temp_species_EAM_Pred_Pop$x" and
"temp_species_NULL_Pred_Pop$x" next to their symbols. I would like to
rename these in the key, say "EAM" and "NULL" -- using the
group=
command doesn't work (since these aren't really different groups). What
is the right way to rename these variables in the key? Is using
auto.key the right approach?
Thanks!
--j
--
Jonathan A. Greenberg, PhD
Postdoctoral Scholar
Center for Spatial Technologies and Remote Sensing (CSTARS)
University of California, Davis
One Shields Avenue
The Barn, Room 250N
Davis, CA 95616
Phone: 415-763-5476
AIM: jgrn307, MSN: jgrn307 at hotmail.com, Gchat: jgrn307
On Sat, Jan 30, 2010 at 12:45 PM, Jonathan Greenberg <greenberg at ucdavis.edu> wrote:> Rhelpers: > > ? Having a problem solving this. ?I have an xyplot call that looks like > this: > > > print(xyplot(temp_species_EAM_Pred_Pop$x+temp_species_NULL_Pred_Pop$x~temp_species_EAM_Pred_Pop$Action,main=current_species, > ? ? ? ? ? ? ? ? ? ? ? xlab="Action",ylab="Predicted Pop", > ? ? ? ? ? ? ? ? ? ? ? xlim=c(xmin,xmax),ylim=c(ymin,ymax), > ? ? ? ? ? ? ? ? ? ? ? auto.key=list(corner=c(1,1)))) > > This is just a scatterplot with two response variables sharing the same > predictor variable (temp_species_EAM_Pred_Pop$Action). ?Right now, the key > has the words "temp_species_EAM_Pred_Pop$x" and > "temp_species_NULL_Pred_Pop$x" next to their symbols. ?I would like to > rename these in the key, say "EAM" and "NULL" -- using the group= command > doesn't work (since these aren't really different groups). ?What is the > right way to rename these variables in the key? ?Is using auto.key the right > approach? > > Thanks! > > --j >Hi Jonathan, A couple pointers that can make things simpler when working with lattice graphics: 1. put your data into 'long format': x, y, group <--- the reshape package is good for this. 2. use the formula interface to lattice plotting functions: xyplot(y_var ~ x_var | panel_grouping_var, groups=color_grouping_var, data=your_dataframe, ...) Cheers, Dylan
On 1/30/2010 3:45 PM, Jonathan Greenberg wrote:> Rhelpers: > > Having a problem solving this. I have an xyplot call that looks like > this: > > > print(xyplot(temp_species_EAM_Pred_Pop$x+temp_species_NULL_Pred_Pop$x~temp_species_EAM_Pred_Pop$Action,main=current_species, > > xlab="Action",ylab="Predicted Pop", > xlim=c(xmin,xmax),ylim=c(ymin,ymax), > auto.key=list(corner=c(1,1)))) > > This is just a scatterplot with two response variables sharing the same > predictor variable (temp_species_EAM_Pred_Pop$Action). Right now, the > key has the words "temp_species_EAM_Pred_Pop$x" and > "temp_species_NULL_Pred_Pop$x" next to their symbols. I would like to > rename these in the key, say "EAM" and "NULL" -- using the group> command doesn't work (since these aren't really different groups). What > is the right way to rename these variables in the key? Is using > auto.key the right approach?Did you try setting the text parameter of the auto.key list? Something like this: print(xyplot(temp_species_EAM_Pred_Pop$x + temp_species_NULL_Pred_Pop$x ~ temp_species_EAM_Pred_Pop$Action, main=current_species, xlab="Action",ylab="Predicted Pop", xlim=c(xmin,xmax),ylim=c(ymin,ymax), auto.key=list(text=c('EAM','NULL'), corner=c(1,1))))> Thanks! > > --j-- Chuck Cleland, Ph.D. NDRI, Inc. (www.ndri.org) 71 West 23rd Street, 8th floor New York, NY 10010 tel: (212) 845-4495 (Tu, Th) tel: (732) 512-0171 (M, W, F) fax: (917) 438-0894