[R] how to make auto.key to produce a legend that uses line pattern (rather than data point) as labels?

[Markus Gesmann]

Hi Mark,

# With auto.key you can specify in a list what kind of graphical output you would like to see in your legend, e.g.

 require(lattice)
 mydata <- data.frame(x=1:4,y=1:4, g=c("a","a","b","b"))
 xyplot(y~x, groups=g, data=mydata,
                                t="l", auto.key=list(lines=TRUE, points=FALSE))

# See as well the documentation for auto.key and key under ?xyplot

# As an alternative you might want to use simpleKey
?simpleKey
 xyplot(y~x, groups=g,data=mydata, t="l",
        key=simpleKey(text=levels(mydata$g),lines=TRUE, points=FALSE))


Regards,

Markus


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-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Mark Farnell
Sent: 24 June 2008 23:46
To: r-help at r-project.org
Subject: [R] how to make auto.key to produce a legend that uses line pattern (rather than data point) as labels?

Hi!

I am working on a line graph under xyplot.  what command should I feed
to auto.key so that it uses the line pattern of series as labels?

Also where can I find doc about all options that I can feed to auto.key?

Thanks!

Mark

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