[R] x,y plot question (two sets of labels)

2010-01-20 Thread Jonathan Greenberg 
I'm trying to figure out the best way to do a scatterplot using the 
following data as an example:


plothelp_x=1:10
plothelp_A1=sin(plothelp_x)
plothelp_A2=tan(plothelp_x)
plothelp_B=c(A,B,C,A,B,C,A,B,C,A)

(note that all 4 of these vectors have 10 entries each)

What I would like is to have two plots on the same graph:

1) plothelp_A1 vs. plothelp_x
2) plothelp_A2 vs. plothelp_x

I want plot #1 to have a set symbol SHAPE (say, crosses) and plot #2 a 
different symbol shape (say, dots).  On top of that, I want all points 
to be color coded based on plothelp_B, e.g. all As are black, all Bs are 
red, all Cs are blue; e.g a sin point with the letter A should be a 
black cross, a tan point with the letter C should be a red dot.  
Finally, I'd like two have TWO keys in the graph showing a) what the 
symbol shapes represent (e.g. cross=sin, dot=tan), and b) what the 
colors mean.


Thanks for any help you can give me!

--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: jgrn...@hotmail.com, Gchat: jgrn307

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Re: [R] x,y plot question (two sets of labels)

2010-01-20 Thread Peter Alspach 
Tena koe Jonathan

There are lots of ways - using base graphics or lattice or ggplot.  As a
start, using base graphics:

plot(plothelpX, plothelpA2, col=factor(plothelpB))
points(plothelpX, plothelpA1, col=factor(plothelpB))

You'll also need the pch argument to plot and, presumably, xlab, ylab
and others.

For the key, check the help for legend:

?legend

HTH

Peter Alspach

 -Original Message-
 From: r-help-boun...@r-project.org 
 [mailto:r-help-boun...@r-project.org] On Behalf Of Jonathan Greenberg
 Sent: Thursday, 21 January 2010 12:54 p.m.
 To: r-help
 Subject: [R] x,y plot question (two sets of labels)
 
 I'm trying to figure out the best way to do a scatterplot 
 using the following data as an example:
 
 plothelp_x=1:10
 plothelp_A1=sin(plothelp_x)
 plothelp_A2=tan(plothelp_x)
 plothelp_B=c(A,B,C,A,B,C,A,B,C,A)
 
 (note that all 4 of these vectors have 10 entries each)
 
 What I would like is to have two plots on the same graph:
 
 1) plothelp_A1 vs. plothelp_x
 2) plothelp_A2 vs. plothelp_x
 
 I want plot #1 to have a set symbol SHAPE (say, crosses) and 
 plot #2 a different symbol shape (say, dots).  On top of 
 that, I want all points to be color coded based on 
 plothelp_B, e.g. all As are black, all Bs are red, all Cs are 
 blue; e.g a sin point with the letter A should be a black 
 cross, a tan point with the letter C should be a red dot.  
 Finally, I'd like two have TWO keys in the graph showing a) 
 what the symbol shapes represent (e.g. cross=sin, dot=tan), 
 and b) what the colors mean.
 
 Thanks for any help you can give me!
 
 --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: jgrn...@hotmail.com, Gchat: jgrn307
 
 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide 
 http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.
 

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.