Hi,
This is always a challenge with expressions vs calls, etc. grid.table
expects an input that can be coerced into a matrix of unevaluated
expressions. This seems to work,
info <- function(a,b){
grid.table(c(bquote(alpha==.(a)), bquote(beta==.(b))),
parse=TRUE, # parse labels as expressions
theme=theme.list(
gpar.corefill=gpar(fill=NA, col=NA), # make bg transparent
core.just="left") # justification of labels
)
}
xyplot(1~1, panel=function(...) info(0.1, 0.5) )
HTH,
baptiste
On 20 April 2011 07:52, Marius Hofert <m_hof...@web.de> wrote:
> Dear guys,
>
> I'm almost there... how can I fix the final problems?
>
> Cheers,
>
> Marius
>
> PS: the "info" function is the one I will then try to call within splom...
>
> library(lattice)
> library(gridExtra)
>
> ## trial 1
> info <- function(a,b){
> grid.table(as.expression(substitute(expression(alpha==alph, beta==bet),
> list(alph=a, bet=b))),
> parse=TRUE, # parse labels as expressions
> theme=theme.list(
> gpar.corefill=gpar(fill=NA, col=NA), # make bg transparent
> core.just="left") # justification of labels
> )
> }
> xyplot(1~1, panel=function(...) info(0.1, 0.5) )
>
> ## trial 2
> info <- function(a,b){
> grid.table(substitute(expression(alpha==alph, beta==bet),
> list(alph=a, bet=b)),
> parse=TRUE, # parse labels as expressions
> theme=theme.list(
> gpar.corefill=gpar(fill=NA, col=NA), # make bg transparent
> core.just="left") # justification of labels
> )
> }
> xyplot(1~1, panel=function(...) info(0.1, 0.5) )
>
>
>
> On 2011-04-19, at 21:39 , David Winsemius wrote:
>
>>
>> On Apr 19, 2011, at 3:26 PM, baptiste auguie wrote:
>>
>>> I'm hoping to release a new version on CRAN soon; the broken state of
>>> R-forge and my poor understanding of R CMD CHECK results have often
>>> made me postpone action indefinitely.
>>
>> In this case the errors were all mine. I suppose an even earlier stage
>> newbie than I might have problems not knowing that binary packages were not
>> available on r-forge or in recognizing (eventually) that loaded old packages
>> might prevent new versions from loading. Figuring out how to clear one
>> package from all the various places they can reside is beyond my pay grade,
>> so I just restart. Someone should write a flush.package function :-)
>>
>> --
>> david.
>>
>>>
>>> Best,
>>>
>>> baptiste
>>>
>>> On 19 April 2011 22:32, David Winsemius <dwinsem...@comcast.net> wrote:
>>>> I attempted , mostly with success to install following the directions in
>>>> r-forge webpage.
>>>>
>>>> I did add type="source", since generally r-forge does not have compiled
>>>> binaries and I did need to do it twice since I did not have `brew`
>>>> installed
>>>> under 2.13.0(beta). The loading of help seemed to be a problem which I
>>>> initially assumed to be due to my being on a Mac running R 2.13.0(beta).
>>>> When issuing ?gridExtra I get a help page that says: Error in fetch(key) :
>>>> internal error -3 in R_decompress1
>>>>
>>>> (I did not expect to ?gridExtra to work since I generally use
>>>> help(package=gridExtra) for packages, but when i do that I get:
>>>>> help(package=gridExtra)
>>>> Error in formatDL(nm, txt, indent = max(nchar(nm, "w")) + 3) :
>>>> incorrect values of 'indent' and 'width'
>>>>
>>>> Then I realized I was loading a new package on top of an old loaded package
>>>> so I restarted R and none of the help errors returned.
>>>>
>>>> Nice text table. Should make this task a lot easier that the strategy I was
>>>> about to suggest of doing some sort of superpose of multiple panel.text
>>>> calls.
>>>>
>>>> --
>>>> David
>>>>
>>>>
>>>> On Apr 19, 2011, at 1:19 AM, baptiste auguie wrote:
>>>>
>>>>> On 19 April 2011 17:06, Marius Hofert <m_hof...@web.de> wrote:
>>>>>>
>>>>>> Dear Baptiste,
>>>>>>
>>>>>> thanks for your answer.
>>>>>> Unfortunately, I get the error "Error using packet 1 invalid 'times'
>>>>>> argument" when executing your code. Hmm... not sure where the problem is.
>>>>>>
>>>>>
>>>>> Oops, – sorry, my mistake. For this code to work you'll need a more
>>>>> recent version of gridExtra than the one on CRAN. You can get it here:
>>>>> http://code.google.com/p/gridextra/
>>>>>
>>>>> baptiste
>>>>>
>>>>>> Cheers,
>>>>>>
>>>>>> Marius
>>>>>>
>>>>>> On 2011-04-19, at 24:03 , baptiste auguie wrote:
>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> Does this help?
>>>>>>>
>>>>>>> library(gridExtra)
>>>>>>>
>>>>>>> my.title = function(expressions) {
>>>>>>> grid.table(expressions, parse=TRUE,
>>>>>>> theme=theme.list(gpar.corefill = gpar(fill = NA, col = NA),
>>>>>>> core.just = "left"))
>>>>>>> }
>>>>>>>
>>>>>>> e = expression(alpha,"text", italic(italic),
>>>>>>> hat(beta), integral(f(x)*dx, a, b))
>>>>>>>
>>>>>>> library(lattice)
>>>>>>>
>>>>>>> xyplot(1~1, panel=function(...) my.title(e) )
>>>>>>>
>>>>>>> HTH,
>>>>>>>
>>>>>>> baptiste
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On 19 April 2011 08:43, Marius Hofert <m_hof...@web.de> wrote:
>>>>>>>>
>>>>>>>> Dear expeRts,
>>>>>>>>
>>>>>>>> I would like to create a scatter plot matrix with splom(). The lower
>>>>>>>> panel should
>>>>>>>> contain some additional information about the samples shown in the
>>>>>>>> upper panel
>>>>>>>> plot, see the splom() call below. Now two questions came up:
>>>>>>>> (1) The lower panels show "tau" and "alpha" on top of each other. How
>>>>>>>> can I plot
>>>>>>>> *three* expressions on top of each other? I tried several approaches
>>>>>>>> (see the trials below),
>>>>>>>> but couldn't manage to get this to work properly.
>>>>>>>> (2) Is there the possibility to plot the two/three lines (containing
>>>>>>>> "tau = ..", "alpha = ..")
>>>>>>>> aligend according to the equality sign?
>>>>>>>>
>>>>>>>> Cheers,
>>>>>>>>
>>>>>>>> Marius
>>>>>>>>
>>>>>>>>
>>>>>>>> library(lattice)
>>>>>>>>
>>>>>>>> f <- function(i,j) i+j
>>>>>>>>
>>>>>>>> U <- matrix(runif(3000), ncol=3)
>>>>>>>>
>>>>>>>> splom(U,
>>>>>>>> superpanel=function(z, ...){
>>>>>>>> tau <- cor(U, method="kendall")
>>>>>>>> df=data.frame(rows=as.vector(row(tau)),
>>>>>>>> columns=as.vector(col(tau)),
>>>>>>>> vals=as.vector(tau)) # data frame of row indices, column
>>>>>>>> indices, and tau values
>>>>>>>> df=subset(df,columns<rows) # subset for lower left triangle
>>>>>>>> with(df,{
>>>>>>>> panel.text(x=rows, y=columns,
>>>>>>>>
>>>>>>>> labels=as.expression(unlist(lapply(1:length(vals),
>>>>>>>> function(i)
>>>>>>>> substitute(atop(tau==tau.,alpha==alpha.),
>>>>>>>> list(tau.=vals[i],
>>>>>>>> alpha.=round(vals[i],3)) ) ))) )
>>>>>>>> })
>>>>>>>> panel.pairs(z, upper.panel=panel.splom,
>>>>>>>> lower.panel=function(...){}, ...)
>>>>>>>> })
>>>>>>>>
>>>>>>>> ## some minimal "trial" examples:
>>>>>>>> plot(0,0,main=paste("alpha=1","\n","beta=2","\n","gamma=3",sep=""))
>>>>>>>> plot(0,0,main=expression(atop(atop(alpha==1, beta==2), gamma==3)))
>>>>>>>> plot(0,0,main=paste(expression(alpha==1),"\n",expression(beta==2),"\n",
>>>>>>>> expression(gamma==3), sep=""))
>>>>>>>> plot(0,0,main=substitute(paste(alpha==1,x,beta==2,x,
>>>>>>>> gamma==3, sep=""), list(x="\n")))
>>>>>>>> plot(0,0,main=expression(cat(alpha==1, "\n", beta==2, "\n", gamma==3,
>>>>>>>> sep="")))
>>>>>>>> plot(0,0,main=cat(expression(alpha==1), "\n", expression(beta==2),
>>>>>>>> "\n",
>>>>>>>> expression(gamma==3), sep=""))
>>>>>>>>
>>>>>>>> ______________________________________________
>>>>>>>> R-help@r-project.org mailing list
>>>>>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>>>>>> PLEASE do read the posting guide
>>>>>>>> http://www.R-project.org/posting-guide.html
>>>>>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>> ______________________________________________
>>>>> R-help@r-project.org mailing list
>>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>>> PLEASE do read the posting guide
>>>>> http://www.R-project.org/posting-guide.html
>>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>
>>>> David Winsemius, MD
>>>> West Hartford, CT
>>>>
>>>>
>>
>> David Winsemius, MD
>> West Hartford, CT
>>
>
>
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