Dear all, I'm trying to create a legend for my graph. I hope to have the title as "Land Use Type" and the two elements being "Urban" and "Rural" with a red point and green point respectively. So far I have the following command, but obviously it isn't correct:> legend("topright", title="Land Use Type", cex=0.75, pch=16, col="red","Urban"&"green","Rural", ncol=2)As you can see, I'm a bit confused as to how to deal with the point colours and associated text. Also, how would I make the associated text ("Urban" and "Rural") smaller than the title? Many thanks for any suggestions! Steve _________________________________________________________________ Discover Bird's Eye View now with Multimap from Live Search
Dear Steve,
Try
legend("topright", title="Land Use Type", cex=0.75, pch=16,
col=c("red", "green"), legend=c("Urban",
"Rural"), ncol=2)
I hope this helps,
John
------------------------------
John Fox, Professor
Department of Sociology
McMaster University
Hamilton, Ontario, Canada
web: socserv.mcmaster.ca/jfox
> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at
r-project.org]
On> Behalf Of Steve Murray
> Sent: September-23-08 12:57 PM
> To: r-help at r-project.org
> Subject: [R] Creating a Legend
>
>
> Dear all,
>
> I'm trying to create a legend for my graph. I hope to have the title as
"Land> Use Type" and the two elements being "Urban" and
"Rural" with a red point
and> green point respectively. So far I have the following command, but
obviously> it isn't correct:
>
> > legend("topright", title="Land Use Type",
cex=0.75, pch=16,
>
col="red","Urban"&"green","Rural",
ncol=2)
>
>
> As you can see, I'm a bit confused as to how to deal with the point
colours> and associated text.
>
> Also, how would I make the associated text ("Urban" and
"Rural") smaller
than> the title?
>
>
> Many thanks for any suggestions!
>
> Steve
>
> _________________________________________________________________
> Discover Bird's Eye View now with Multimap from Live Search
>
> ______________________________________________
> R-help at 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.
Hi,
I think you want the following,
df <- data.frame(x=rnorm(100), y=rnorm(100))
plot(df)
legend("topright", title="Land Use Type", cex=0.75, pch=16,
col=c("red", "green"),legend=c("Urban",
"green"), ncol=2)
I could not find a way to have a different text size for the title,
but it's easy to do in lattice or ggplot2.
Baptiste
On 23 Sep 2008, at 17:56, Steve Murray wrote:
>
> Dear all,
>
> I'm trying to create a legend for my graph. I hope to have the title
> as "Land Use Type" and the two elements being "Urban"
and "Rural"
> with a red point and green point respectively. So far I have the
> following command, but obviously it isn't correct:
>
>> legend("topright", title="Land Use Type", cex=0.75,
pch=16,
>>
col="red","Urban"&"green","Rural",
ncol=2)
>
>
> As you can see, I'm a bit confused as to how to deal with the point
> colours and associated text.
>
> Also, how would I make the associated text ("Urban" and
"Rural")
> smaller than the title?
>
>
> Many thanks for any suggestions!
>
> Steve
>
> _________________________________________________________________
> Discover Bird's Eye View now with Multimap from Live Search
>
> ______________________________________________
> R-help at 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.
_____________________________
Baptiste Augui?
School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag