[R] Exporting Contingency Tables with xtable
Na'im R. Tyson
NTYSON at CLOVERMAIL.NET
Wed Dec 9 06:04:36 CET 2009
Dear R-philes:
I am having an issue with exporting contingency tables with xtable().
I set up a contingency and convert it to a matrix for passing to
xtable() as shown below.
v.cont.table <- table(v_lda$class, grps,
dnn=c("predicted", "observed"))
v.cont.mat <- as.matrix(v.cont.table)
Both produce output as follows:
observed
predicted uh uh~
uh 201 30
uh~ 6 10
However, when I construct the latex table with xtable(v.cont.mat), I
get a good table without the headings of "predicted" and "observed".
\begin{table}[ht]
\begin{center}
\begin{tabular}{rrr}
\hline
& uh & uh\~{} \\
\hline
uh & 201 & 30 \\
uh\~{} & 6 & 10 \\
\hline
\end{tabular}
\end{center}
\end{table}
Question: is there any easy way to retain or re-insert the dimension
names from the contingency table and matrix?
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