From: Chuck Cleland <ccleland_at_optonline.net>

Date: Thu 29 Jul 2004 - 21:37:46 EST

Date: Thu 29 Jul 2004 - 21:37:46 EST

xyplot(y ~ x, panel = function(x, y, ...){ panel.xyplot(x, y, ...) panel.lmline(x, y, type="l") })

Matthew Walker wrote:

> I am trying to use the Lattice package to produce the same result as I

*> can with the base graphics.
**>
**> With base graphics I can type:
**>
**> x <- 1:100
**> y <- x+rnorm(length(x))
**> g <- lm( y ~ x )
**> model.y <- g$coef[1]+g$coef[2]*x
**>
**> plot(x,y) # a plot of the data
**> lines( x, model.y ) # a plot of the model, superimposed on the first plot
**>
**>
**> With Lattice graphics I've got this far:
**>
**> library(lattice)
**> plot1 <- xyplot(y ~ x)
**> plot2 <- xyplot(model.y ~ x, panel = function(x, y) { llines(x=x, y=y) })
**> print(plot1, more=TRUE, position=c(0,0.5,1,1))
**> print(plot2, position=c(0,0,1,0.5))
**>
**> But this just produces two graphs, one above the other. How do I
**> overlay them? What should I be doing in order to get the same result as
**> with the base graphics?
*

-- Chuck Cleland, Ph.D. NDRI, Inc. 71 West 23rd Street, 8th floor New York, NY 10010 tel: (212) 845-4495 (Tu, Th) tel: (732) 452-1424 (M, W, F) fax: (917) 438-0894 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.htmlReceived on Thu Jul 29 21:49:13 2004

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