[R] xyplot and abline

John Charles Considine vinum at iinet.net.au
Thu Sep 22 12:39:35 CEST 2005


On Thu, 2005-09-22 at 10:35 +0200,
Vincent.Duval at bc.boehringer-ingelheim.com wrote:
> Use panel.superpose into a panel function
> Here is some changes in your function that should do the work, 
> I haven't tried it but at least it should be closed to it, 
> HTH
> Vincent
> 
Perfect.  Thank you.

> Suggestions
> xyplot(fcast$LOGDIFF~fcast$VINTAGE|fcast$REGION,
>        groups=fcast$LAG,
>        type="b",mfcol=c(3,5),
>        panel=function(x,y,...){
> 		panel.superpose(x,y,...)
> 		panel.abline(h=0)
> 	},
>        key=list(columns=3, 
>          text=list(paste(c("forecast:  ", "",""),
>            unique(fcast$LAG), "years")),
>        points=Rows(sps,1:3)))
> 
> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of John Charles
> Considine
> Sent: Thursday, September 22, 2005 10:11 AM
> To: r-help
> Subject: [R] xyplot and abline
> 
> 
> "MMS - ING02 <ing.boehringer-ingelheim.com>" made the following annotations.
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> 
> How should I pass abline to this function so that I get a reference line
> at h=0 in each panel?
> 
> sps <- trellis.par.get("superpose.symbol")
> sps$pch <- 1:10
> trellis.par.set("superpose.symbol",sps)
> xyplot(fcast$LOGDIFF~fcast$VINTAGE|fcast$REGION,
>        groups=fcast$LAG,
>        panel=panel.superpose,
>        type="b",mfcol=c(3,5),
>        key=list(columns=3, 
>          text=list(paste(c("forecast:  ", "",""),
>            unique(fcast$LAG), "years")),
>        points=Rows(sps,1:3)))
> 
> Cheers,
> 
> JC
> 
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