Re: [R] Conflict between xtable and Hmisc when using Sweave?

From: David B. Dahl <dahl_at_stat.tamu.edu>
Date: Tue 17 May 2005 - 00:41:00 EST

Sander,

Thanks for pointing out the conflict between Hmisc and xtable. I am not sure I have a good solution.

My understand of the namespace solution is that packages can specify which variables to export for use by the package users. The label function is not an internal function, rather one what is intended for the user.

Renaming the label() would resolve the conflict with the Hmisc package, but make xtable not compatible with previous versions.

As noted by Andy, label() in xtable is an S3 generic with an implementation label.xtable() specific to the xtable package. Perhaps Frank of Hmisc might be willing to make his follow the S3 generic naming convention?

I am open to suggestions and, more especially, code. Thanks for using xtable.

Liaw, Andy wrote:

>You need to add the namespace to the source package, by adding a NAMESPACE
>file. There's an R News article by Prof. Tierney on how to do this. Also
>see the `Writing R Extensions' manual. You should get the package
>maintainer to do that, as that constitute a change in the package source
>code.
>
>Short of that, you should make sure that Hmisc is loaded later than xtable,
>and use something like what Gabor suggested to access label() in xtable. (I
>would use some other name, though: label() in xtable is already an S3
>generic).
>
>Andy
>
>
>
>>From: Sander Oom
>>
>>Hi Andy and Gabor,
>>
>>Thanks for your help so far! I am discovering another R dimension.
>>
>>Trying to put my head around all this....the conflict
>>actually exposes
>>itself when calling summarize(Hmisc). Summarize(Hmisc) calls label
>>internally, so I can not call it explicitly. Simply calling
>>label(xtable) explicitly will not solve the problem with
>>summarize(Hmisc).
>>
>>Thus, I should use namespaces as Andy is suggesting. Now I
>>just need to
>>know how I 'add namespace' to a library? Does 'loadNamespace' have
>>something to do with it?
>>
>>Thanks very much for your help!
>>
>>Sander.
>>
>>
>>## From Venables and Ripley (2002) p.165.
>>N <- c(0,1,0,1,1,1,0,0,0,1,1,0,1,1,0,0,1,0,1,0,1,1,0,0)
>>P <- c(1,1,0,0,0,1,0,1,1,1,0,0,0,1,0,1,1,0,0,1,0,1,1,0)
>>K <- c(1,0,0,1,0,1,1,0,0,1,0,1,0,1,1,0,0,0,1,1,1,0,1,0)
>>yield <-c(49.5,62.8,46.8,57.0,59.8,58.5,55.5,56.0,
>> 62.8,55.8,69.5,55.0,
>> 62.0,48.8,45.5,44.2,52.0,
>> 51.5,49.8,48.8,57.2,59.0,53.2,56.0)
>>npk <- data.frame(block=gl(6,4), N=factor(N), P=factor(P),
>> K=factor(K), yield=yield)
>>## to show the effects of re-ordering terms contrast the two fits
>>tmpAov <- aov(yield ~ block + N * P + K, npk)
>>tmpTable <- xtable(tmpAov , caption="Test export of ANOVA table.",
>> label="tab:Anova")
>>print.xtable(tmpTable, type="latex", floating=TRUE,
>> table.placement="h", caption.placement="top",
>> latex.environments=c("center"))
>>
>>Alternatively, using namespace for xtable:
>>
>>tmpTable <- xtable(tmpAov , caption="Test export of ANOVA table.")
>>xtable:::label(tmpTable) <- paste("tab:Anova")
>>print.xtable(tmpTable, type="latex", floating=TRUE,
>> table.placement="ht", caption.placement="top",
>> latex.environments=c("center"))
>>
>>
>>
>>Gabor Grothendieck wrote:
>>
>>
>>>Even without a namespace one could explicitly reference the label
>>>in xtable via:
>>>
>>>xtable.label <- get("label", "package:xtable")
>>>
>>>On 5/16/05, Liaw, Andy <andy_liaw@merck.com> wrote:
>>>
>>>
>>>>One possible solution without renaming the functions is to
>>>>
>>>>
>>add namespace to
>>
>>
>>>>either xtable or Hmisc. Given the size of Hmisc, it
>>>>
>>>>
>>probably would be much
>>
>>
>>>>easier to do that with xtable.
>>>>
>>>>With namespace in xtable, you can do xtable:::label() to
>>>>
>>>>
>>refer to the
>>
>>
>>>>label() in xtable specifically.
>>>>
>>>>Andy
>>>>
>>>>
>>>>
>>>>>From: Of Sander Oom
>>>>>
>>>>>Dear David,
>>>>>
>>>>>I would like to use summarize(Hmisc) and print.xtable(xtable) in a
>>>>>single Sweave document, but a conflict with the 'label' function
>>>>>prohibits this at the moment!
>>>>>
>>>>>Would you be able to correct the conflicting code? I will
>>>>>
>>>>>
>>gladly test
>>
>>
>>>>>the new package!
>>>>>
>>>>>I have tried latex(Hmisc) to export the anova table, but
>>>>>results are not
>>>>>promising! I prefer xtable!!
>>>>>
>>>>>Thanks,
>>>>>
>>>>>Sander.
>>>>>
>>>>>Frank E Harrell Jr wrote:
>>>>>
>>>>>
>>>>>>Sander Oom wrote:
>>>>>>
>>>>>>
>>>>>>>Dear Frank,
>>>>>>>
>>>>>>>I have a Sweave document in which I export anova (aov)
>>>>>>>
>>>>>>>
>>>>>tables to Latex
>>>>>
>>>>>
>>>>>>>and calculate some summary statistics with summarize{Hmisc} for a
>>>>>>>graph (as in the example below).
>>>>>>>
>>>>>>>I currently use the following code for the aov tables:
>>>>>>><<results=tex>>=
>>>>>>> tmp <- datGrassHC[datGrassHC$Loc > 0 & datGrassHC$Loc < 9 ,]
>>>>>>> tmpAov <- aov(Height~Geology*Altitude*Origin*BinInOut
>>>>>>>
>>>>>>>
>>, data=tmp)
>>
>>
>>>>>>> tmpTable <- xtable (tmpAov ,
>>>>>>> caption="ANOVA table for vegetation height.",
>>>>>>> label="tab:AnovaHeight"
>>>>>>> )
>>>>>>> print.xtable(tmpTable, type="latex", floating=TRUE,
>>>>>>> table.placement="ht", caption.placement="top",
>>>>>>> latex.environments=c("center"))
>>>>>>> )
>>>>>>>@
>>>>>>>
>>>>>>>I used xtables, because it has a working aov example. I
>>>>>>>
>>>>>>>
>>>>>would be happy
>>>>>
>>>>>
>>>>>>>to use an alternative if I knew how! Would you have
>>>>>>>
>>>>>>>
>>sample code to
>>
>>
>>>>>>>illustrate how to export an aov table to Latex using
>>>>>>>
>>>>>>>
>>latex{Hmisc}.
>>
>>
>>>>>>>Thanks very much for your help,
>>>>>>>
>>>>>>>Sander.
>>>>>>>
>>>>>>>Frank E Harrell Jr wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>Sander Oom wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>Dear R users,
>>>>>>>>>
>>>>>>>>>The Sweave code below runs fine, as it is. However, an
>>>>>>>>>
>>>>>>>>>
>>>>>error occurs
>>>>>
>>>>>
>>>>>>>>>when the line 'library(xtable)' is uncommented:
>>>>>>>>>Error: chunk 1
>>>>>>>>>Error in "label<-"(`*tmp*`, value = "month") :
>>>>>>>>> no applicable method for "label<-"
>>>>>>>>>
>>>>>>>>>Is anybody aware of this and knows a workaround?
>>>>>>>>>
>>>>>>>>>Thanks,
>>>>>>>>>
>>>>>>>>>Sander.
>>>>>>>>>
>>>>>>>>>*******************
>>>>>>>>>
>>>>>>>>>\documentclass[a4paper]{article}
>>>>>>>>>\title{Sweave Test for summarize}
>>>>>>>>>\author{Sander Oom}
>>>>>>>>>
>>>>>>>>>\usepackage{a4wide}
>>>>>>>>>
>>>>>>>>>\begin{document}
>>>>>>>>>
>>>>>>>>>\maketitle
>>>>>>>>>
>>>>>>>>>\begin{figure}[ht]
>>>>>>>>>\begin{center}
>>>>>>>>><<fig=TRUE,echo=FALSE>>=
>>>>>>>>> # library(xtable)
>>>>>>>>> library(Hmisc)
>>>>>>>>> set.seed(111)
>>>>>>>>> dfr <- expand.grid(month=1:12, year=c(1997,1998), reps=1:100)
>>>>>>>>> month <- dfr$month
>>>>>>>>> year <- dfr$year
>>>>>>>>> y <- abs(month-6.5) + 2*runif(length(month)) + year-1997
>>>>>>>>> s <- summarize(y, llist(month,year), smedian.hilow,
>>>>>>>>>
>>>>>>>>>
>>>>>conf.int=.5)
>>>>>
>>>>>
>>>>>>>>> print(xYplot(Cbind(y,Lower,Upper) ~ month,
>>>>>>>>>
>>>>>>>>>
>>groups=year, data=s,
>>
>>
>>>>>>>>> keys='lines', method='alt', type='b'))
>>>>>>>>>@
>>>>>>>>>\end{center}
>>>>>>>>>\end{figure}
>>>>>>>>>
>>>>>>>>>\end{document}
>>>>>>>>>
>>>>>>>>>************************
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>>version
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>> _
>>>>>>>>>platform i686-pc-linux-gnu
>>>>>>>>>arch i686
>>>>>>>>>os linux-gnu
>>>>>>>>>system i686, linux-gnu
>>>>>>>>>status
>>>>>>>>>major 2
>>>>>>>>>minor 1.0
>>>>>>>>>year 2005
>>>>>>>>>month 04
>>>>>>>>>day 18
>>>>>>>>>language R
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>I feel this is an xtable problem because Hmisc has being
>>>>>>>>
>>>>>>>>
>>>>>using label
>>>>>
>>>>>
>>>>>>>>and label<- since 1991.
>>>>>>>>
>>>>>>>>Frank
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>There are ways to make functions from one area override those from
>>>>>>another, but the real solution is to ask the xtable author
>>>>>>
>>>>>>
>>>>>not to have
>>>>>
>>>>>
>>>>>>functions that conflict with the (older) Hmisc package. -Frank
>>>>>>
>>>>>>
>>>>>>
>>>>>--
>>>>>--------------------------------------------
>>>>>Dr Sander P. Oom
>>>>>Animal, Plant and Environmental Sciences,
>>>>>University of the Witwatersrand
>>>>>Private Bag 3, Wits 2050, South Africa
>>>>>Tel (work) +27 (0)11 717 64 04
>>>>>Tel (home) +27 (0)18 297 44 51
>>>>>Fax +27 (0)18 299 24 64
>>>>>Email sander@oomvanlieshout.net
>>>>>Web www.oomvanlieshout.net/sander
>>>>>
>>>>>______________________________________________
>>>>>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
>>
>>
>>--
>>
>>--------------------------------------------
>>Dr Sander P. Oom
>>Animal, Plant and Environmental Sciences,
>>University of the Witwatersrand
>>Private Bag 3, Wits 2050, South Africa
>>Tel (work) +27 (0)11 717 64 04
>>Tel (home) +27 (0)18 297 44 51
>>Fax +27 (0)18 299 24 64
>>Email sander@oomvanlieshout.net
>>Web www.oomvanlieshout.net/sander
>>---------------------------------------------
>>
>>
>>
>>
>>
>
>
>
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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue May 17 00:45:33 2005

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