Re: [R] xyplot auto.key issue

From: Deepayan Sarkar <deepayan.sarkar_at_gmail.com>
Date: Sun 31 Jul 2005 - 15:46:43 EST

On 7/30/05, Mike Lawrence <Mike.Lawrence@dal.ca> wrote:
> Quick correction:
>
> The lines "lines = T," & "type = "b"" in the "par.settings" section should
> not
> be there. They are remnants of my previous (failed) attempts at solving the
> problem. Below is the correct code:
>
> xyplot(
> #basic settings
> bias ~ sample_size | measure,
> data = bias,
> groups = exp_tau,
> type = "b",
> pch = c(1,2,3,4,5),
> #make strips transparent
> strip = function(bg, ...) strip.default(bg = 'transparent', ...),
> # tweak scales
> scales=list(
> x=list(
> at = c(20, 40, 60),
> tck = c(1,0),
> alternating = F
> ),
> y=list(
> at = c(-50, -25, 0, 25, 50),
> tck = c(1,0),
> alternating = F
> )
> ),
> # tell key to match symbols to those used in the plot
> par.settings = list(
> superpose.symbol = list(
> cex = .8,
> pch = c(1,2,3,4,5)
> )
> ),
> # key settings
> auto.key = list (
> lines = T,
> size = 7,

You seem to be missing a 'type="b"' somewhere here. The type="b" argument to xyplot is actually handled by the panel function. The key has type="l" by default (see under 'key' in ?xyplot) and has to be changed explicitly.

> border = T,
> cex.title = 1.2,
> title = "Expected Tau",
> text = c("30 ms", "80 ms", "130 ms", "180 ms", "230 ms"),
> space = "right",
> )
> )
>
>
>
> Quoting Mike Lawrence <Mike.Lawrence@dal.ca>:
>
> > Hi all,
> >
> > I'm having a problem with the auto.key function in xyplot. I hate to
> > bother the
> > list like this and I'm positive I must be missing something very simple,
> yet
> > I've spent the last day searching for a solution to no avail.
> >
> > Essentially, I want a key that contains entries in which the plot points
> are
> > superimposed on a line of the same color as the points, like this:
> o--o--o
> > Now, given the presence of the default "divide" command, I assume this is
> > simple; indeed, I get the impression that this representation is
> > supposed to be
> > produced automatically. Yet I can't seem to get it to work!
> >
> > Now, I've incorporated various other tweaks to my xyplot function, so I'm
> > wondering if these tweaks are somehow hindering my efforts. The function
> is
> > pasted below; I am making a 3x3 plot, each panel contains 5 lines and it
> is
> > these lines that I want represented in the key. See the comments for
> > descriptions of the modifications.
> >
> > Any help would be greatly appreciated.
> >
> > Cheers,
> >
> > Mike
> >
> >
> > xyplot(
> > #basic settings
> > bias ~ sample_size | measure,
> > data = bias,
> > groups = exp_tau,
> > type = "b",
> > pch = c(1,2,3,4,5),
> > #make strips transparent
> > strip = function(bg, ...) strip.default(bg = 'transparent', ...),
> > # tweak scales
> > scales=list(
> > x=list(
> > at = c(20, 40, 60),
> > tck = c(1,0),
> > alternating = F
> > ),
> > y=list(
> > at = c(-50, -25, 0, 25, 50),
> > tck = c(1,0),
> > alternating = F
> > )
> > ),
> > # tell key to match symbols to those used in the plot
> > par.settings = list(
> > superpose.symbol = list(
> > cex = .8,
> > pch = c(1,2,3,4,5)
> > ),
> > lines = T,
> > type = "b"
> > ),
> > # key settings
> > auto.key = list (
> > lines = T,
> > size = 7,
> > border = T,
> > cex.title = 1.2,
> > title = "Expected Tau",
> > text = c("30 ms", "80 ms", "130 ms", "180 ms", "230 ms"),
> > space = "right",
> > )
> > )
> >
> >
> >
> > --
> >
> > Mike Lawrence, BA(Hons)
> > Research Assistant to Dr. Gail Eskes
> > Dalhousie University & QEII Health Sciences Centre (Psychiatry)
> >
> > Mike.Lawrence@Dal.Ca
> >
> > "The road to Wisdom? Well, it's plain and simple to express:
> > Err and err and err again, but less and less and less."
> > - Piet Hein
> >
> > ______________________________________________
> > R-help@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
> >
>
>
>
> --
>
> Mike Lawrence, BA(Hons)
> Research Assistant to Dr. Gail Eskes
> Dalhousie University & QEII Health Sciences Centre (Psychiatry)
>
> Mike.Lawrence@Dal.Ca
>
> "The road to Wisdom? Well, it's plain and simple to express:
> Err and err and err again, but less and less and less."
> - Piet Hein
>
> ______________________________________________
> R-help@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
>



R-help@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 Received on Sun Jul 31 15:54:20 2005

This archive was generated by hypermail 2.1.8 : Fri 03 Mar 2006 - 03:39:38 EST