R help - Oct 2006 - postcript file / xyplot function [Broadcast]

This is FAQ 7.22.  Lattice functions produce graphic objects, which are not
displayed by default. If you print your graph, you should be fine.  Also,
take a look at the documentation for panel.xyplot.  Using type =
c("p", "r")
should make things simpler.
Regards,

Matt Wiener 

-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of
jessica.gervais at tudor.lu
Sent: Tuesday, October 03, 2006 8:00 AM
To: R-help at stat.math.ethz.ch
Subject: [R] postcript file / xyplot function [Broadcast]

Hi,

I  would like save a curve in a postscript file.

It when I use a common "plot" function (plot)

postscript(file="file.eps")
plot(x,y)
dev.off()

It's not working with the  "xyplot" function (lattice package).

postscript(file="Z",height=8,width=8,horizontal=FALSE)
xyplot(data[,3]~data[,2]|data[,1],panel=function(x,y){panel.xyplot(x,y)
COEFF<-coef(lm(log(y)~x))
panel.curve(exp(COEFF[1]+COEFF[2]*x))
dev.off()

Do anyone know how to use the postscript function with a xyplot function ?

Thanks by advance 

Jessica Gervais

	[[alternative HTML version deleted]]

______________________________________________
R-help at stat.math.ethz.ch 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.



------------------------------------------------------------------------------
Notice:  This e-mail message, together with any attachments,...{{dropped}}

I recommend you get a better editor, one that highlights mismatched
parentheses.

Your statement

xyplot(data[,3] ~ data[,2] | data[,1],
       panel=function(x,y) {panel.xyplot(x,y)

was never completed, the close "}" is missing, hence it never
executed.

Please use better spacing in your functions as it makes it
easier for the human to read them.


In this example, since you are using the default panel function, the
simpler statement

xyplot(data[,3] ~ data[,2] | data[,1])

would have sufficed.

Even better, use a data.frame, rather than a matrix, 
and use variable names for legibility,
and you could write

xyplot(y ~ x | a, data=mydata)
 

Rich