# [R] skipping rows in trellis key

Sundar Dorai-Raj sundar.dorai-raj at pdf.com
Thu Apr 6 12:01:14 CEST 2006

```Hi, Steve,

I think you can trick it by adding an empty level with a small cex:

keyArgs <- list(points=list(pch=c(NA,rep(17,5),NA),lwd=2,
col=c(NA,c("red", "chartreuse3", "black", "cyan",
"blue")),NA),
text=list(lab=c("S-R
Mapping","Color","Shape","Letter","Compatible","Incompatible",""),cex=c(1.2,1,1,1,1,1,.2)),

text=list(lab=c(expression(R^2),as.character(rep(0.999,5)),""),cex=c(1.2,1,1,1,1,1,.2)))

HTH,

--sundar

Steven Lacey wrote:
> Try this...
>
> xyplot(y~x,data=data.frame(x=1:10,y=1:10))
> keyArgs <- list()
> keyArgs <- list(points=list(pch=c(NA,rep(17,5)),lwd=2,col=c(NA,c("red",
> "chartreuse3", "black", "cyan", "blue"))),
>                 text=list(lab=c("S-R Mapping",
> "Color","Shape","Letter","Compatible","Incompatible"),cex=c(1.2,1,1,1,1,1)),
>
> text=list(lab=c(expression(R^2),as.character(rep(0.999,5))),cex=c(1.2,1,1,1,
> 1,1)))
> keyArgs\$between <- c(1,0,5)
> keyArgs\$columns <- 1
> keyArgs\$column.between <- 1
> keyArgs\$border <- TRUE
> drawKeyArgs <- list(key=keyArgs,draw=FALSE)
> keyArgs\$draw <- FALSE
> key <- do.call("draw.key",drawKeyArgs)
> vp1<-viewport(x=1,y=1,height=unit(1,"grobheight",key),width=unit(1,"grobwidt
> h",key),just=c("right","top"))
> pushViewport(vp1)
> grid.draw(key)
> popViewport()
>
> Steve
>
> -----Original Message-----
> From: Deepayan Sarkar [mailto:deepayan.sarkar at gmail.com]
> Sent: Wednesday, April 05, 2006 11:53 PM
> To: Steven Lacey
> Cc: r-help at stat.math.ethz.ch
> Subject: Re: [R] skipping rows in trellis key
>
>
> On 4/5/06, Steven Lacey <slacey at umich.edu> wrote:
>
>>Yes, that works! Thanks!
>>
>>On a related note... When I draw my key there is not sufficient
>>padding between the last line of the key and the border line. For
>>instance, the vertical line in "p" often drops below the border. Is
>>there an easy way to add padding between the last row of the key and
>>the border?
>
>