[R] latex tables for 3+ dimensional tables/arrays

Michael Friendly friendly at yorku.ca
Sun Dec 5 00:26:59 CET 2010

Hi Rich,
I was looking for something that I could make general, as a latex.ftable
method for ftable objects.  I realize you showed how to do this for a
particular case, but I'm having a bit of trouble translating this into
a general solution for 1 or more row variables and 1 or more col variables.

This is most likely because latex() offers a bewildering collection
of arguments I don't fully understand how to apply in this case.

Here is my current sketch, with test cases below, one of which fails...

latex.ftable <- function(object, numeric.dollar=FALSE,  ...) {
cv <- attr(object,"col.vars")
rv <- attr(object,"row.vars")
ncv <- length(cv)
nrv <- length(rv)
cgroup <- if (ncv>1) cv[[1]] else NULL
rowname <- rv[[2]]
rgroup <- if (nrv>1) rv[[1]] else NULL
cgroup=cgroup, rgroup=rgroup, numeric.dollar=numeric.dollar, ...)
}

> ft
Dept   A   B   C   D   E   F
Admitted Male        512 353 120 138  53  22
Female       89  17 202 131  94  24
Rejected Male        313 207 205 279 138 351
Female       19   8 391 244 299 317
> str(ft)
ftable [1:4, 1:6] 512 89 313 19 353 17 207 8 120 202 ...
- attr(*, "row.vars")=List of 2
..$Admit : chr [1:2] "Admitted" "Rejected" ..$ Gender: chr [1:2] "Male" "Female"
- attr(*, "col.vars")=List of 1
..\$ Dept: chr [1:6] "A" "B" "C" "D" ...
>

> latex(ft, file="")
cgroup = cgroup, rgroup = rgroup, numeric.dollar = numeric.dollar,
...)
%
\begin{table}[!tbp]
\begin{center}
\begin{tabular}{lrrrrrr}\hline\hline
\multicolumn{1}{l}{object}&\multicolumn{1}{c}{A}&\multicolumn{1}{c}{B}&\multicolumn{1}{c}{C}&\multicolumn{1}{c}{D}&\multicolumn{1}{c}{E}&\multicolumn{1}{c}{F}\tabularnewline
\hline
~~Male&512&353&120&138& 53& 22\tabularnewline
~~Female& 89& 17&202&131& 94& 24\tabularnewline
\hline
{\bfseries Rejected}&&&&&&\tabularnewline
~~Male&313&207&205&279&138&351\tabularnewline
~~Female& 19&  8&391&244&299&317\tabularnewline
\hline
\end{tabular}

\end{center}

> ft1
Gender Male                     Female
Dept      A   B   C   D   E   F      A   B   C   D   E   F
Admitted         512 353 120 138  53  22     89  17 202 131  94  24
Rejected         313 207 205 279 138 351     19   8 391 244 299 317
>
> latex(ft1, file="")
Error in rv[[2]] : subscript out of bounds
>

On 12/2/2010 5:24 PM, RICHARD M. HEIBERGER wrote:
> Michael,
>
> I think this is what you are looking for.
> Rich
>
>
>
> library(Hmisc)
> tmp<- array(rnorm(60), c(3,4,5),
> list(letters[1:3],LETTERS[4:7],letters[8:12]))
> ## latex(tmp)
> ftable(tmp)
> dviname<- latex(ftable(tmp))
> ft<- ftable(tmp)
> dviname<- latex(ft,