[R] lattice: strange behavior (?) when using trellis.device(color=FALSE)

[Peter Ehlers]

On 2010-11-27 15:03, Marius Hofert wrote:
> Dear Peter,
>
> do you know anything similar for a cloud() plot?
> This does not work:
>
> library(lattice)
> x<- matrix(runif(900),ncol=3)
> cloud(x[,3]~x[,1]*x[,2],scales = list(col = 1, arrows=FALSE),
>                   par.settings = list(standard.theme(color=FALSE),
>                   axis.line=list(col="transparent"),
>                   clip=list(panel="off")))

I think this should do it:

  cloud(x[,3] ~ x[,1] * x[,2],
    scales = list(col = 1, arrows = FALSE),
    par.settings = modifyList(standard.theme(color = FALSE),
      list(axis.line = list(col = "transparent"),
                clip = list(panel = "off"))))

(You have to modify the standard.theme parameters.)

See ?modifyList and also:
  http://www.mail-archive.com/r-help@r-project.org/msg64699.html

Peter Ehlers


> Cheers,
>
> Marius
>
>
> On 2010-11-27, at 13:16 , Peter Ehlers wrote:
>
>> On 2010-11-27 03:31, Marius Hofert wrote:
>>> Hi,
>>>
>>> I get a warning () using
>>>
>>> xyplot.<- function(u) {
>>> 	BW.theme<-
>>> 	    list(strip.background = list(col = "gray90"),
>>> 	         strip.shingle = list(col=c("gray75")),
>>> 	         layout.heights = list(strip = c(1,1)),
>>> 	         axis.text = list(cex = 0.8),
>>> 	         superpose.symbol=list(col=1, pch=20)
>>> 	         )
>>> 	xyplot(u[,2]~u[,1],par.settings=BW.theme)
>>> }
>>> U<- matrix(runif(20),ncol=2)
>>> b<- xyplot.(U)
>>> b
>>>
>>> and it does not change the color. Further, would such an approach change all colors (including plot symbols, text, background, etc.)?
>>>
>>> But it's funny to see because I played around with par.settings as well. I tried...
>>>
>>> library(lattice)
>>> xyplot.<- function(u) {
>>> 	xyplot(u[,2]~u[,1],par.settings=list(color=FALSE))
>>> }
>>> U<- matrix(runif(20),ncol=2)
>>> b<- xyplot.(U)
>>> b
>>>
>>> ... but it didn't work :-(
>>>
>>
>> xyplot.<- function(u) {
>> 	xyplot(u[,2] ~ u[,1],
>>         par.settings = standard.theme(color=FALSE))
>> }
>>
>> see ?xyplot.ts
>>
>> Peter Ehlers
>>
>>> Cheers,
>>>
>>> Marius
>>>
>>>
>>>
>>> On 2010-11-27, at 12:00 , ottorino wrote:
>>>
>>>> Il giorno sab, 27/11/2010 alle 00.35 +0100, Marius Hofert ha scritto:
>>>>> The reason why I would like to use trellis.device() within a function
>>>>> is that
>>>>> the plot contains a panel.function which contains many calls to
>>>>> panel.xyplot()
>>>>> and I do not want to write "col = 1" (e.g.) all the time...
>>>>
>>>> Why not to use a theme like
>>>>
>>>> BW.theme<-
>>>>     list(strip.background = list(col = "gray90"),
>>>>          strip.shingle = list(col=c("gray75")),
>>>>          layout.heights = list(strip = c(1,1)),
>>>>          axis.text = list(cex = 0.8),
>>>>          superpose.symbol=list(col=1, pch=20)
>>>>          )
>>>> xyplot(V1~V2, par.settings = BW.theme)
>>>>
>>>>
>>>>
>>>
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>>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>
>