[R] Trellis Plot Labels

[Deepayan Sarkar]

On 11/17/06, Turgut Durduran <durduran at yahoo.com> wrote:
> On 11/17/06, Turgut Durduran <durduran at yahoo.com> wrote:
> >> Hello everyone,
> >>
> >> I am ploting a groupeddata object with formula:
> >>
> >> formula(mydatausegroup)
> >> BF ~ HO | ID/Infar/Day
> >>
> >> Using this command:
> >> plot(na.omit(mydatausegroup), displayLevel=2,layout=c(10,2),aspect=2)
> >>
> >>
> >> This trellis plot does almost what I want and produces a 10x2 trellis plot, each panel is labeled
> >> as ID/Infar where infarct is either 1 or 0. And in each panel, it plots BF vs HO for each Day. However, the "days" are labeled simply as "1,2,3,4" i>>nstead of their actual values (ranging from 1 to 8). This just mapped for each ID the "1 st measurement, 2nd measurement, 3rd measurement, 4th >>measurement".
> >>

This seems to be intended behaviour, and the responsible function is
collapse.groupedData (which is not very transparent to me).

> >> How can I get this trellis plot to use 8 different colors and label them correct?

I don't see a documented way, so you'll probably need to modify
collapse.groupedData

-Deepayan

> >Hard to say without a reproducible example. As the footer of every
> >r-help message says:
>
>  >PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>  >and provide commented, minimal, self-contained, reproducible code.
>
> >-Deepayan
>
> I apologize, I thought my example was fairly self-contained.
>
>
> I am attaching a sample data table (a subset). This is the code:
>
> library(nlme)
> library(lattice)
>  tst <- read.table("sil.txt",header=TRUE)
>  mydatausegroup <- groupedData( BF ~ HO  | ID/Infa/Day, data=tst)
>  plot(na.omit(mydatausegroup), displayLevel=2,layout=c(10,2),aspect=2)
> > min(mydatausegroup$Day)
> [1] 8
> > min(mydatausegroup$Day)
> [1] 1
>
>
> Note that layout is too large now, but that does not matter.
>
> Thanks,
>
> Turgut
>