Re: [R] xyplot auto.key issue

From: Mike Lawrence <Mike.Lawrence_at_dal.ca>
Date: Sun 31 Jul 2005 - 05:17:29 EST

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,
		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

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Received on Sun Jul 31 05:22:50 2005

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