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Conflict between xtable and Hmisc when using Sweave?

3 messages · Sander Oom, Frank E Harrell Jr

Sander Oom
# 
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
Frank E Harrell Jr
#
Sander Oom wrote:
I feel this is an xtable problem because Hmisc has being using label and 
label<- since 1991.

Frank
Sander Oom
# 
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: