DEar list members,
I am currently using Sweave with LaTeX which is great.
I can use xtable for formatting outp of tables but I have a problem setting the
number of decimals in xtables when used with dataframe.
I have found an example on the net ith matrix and it works.
For example this works :
> > tmp <- matrix(rnorm(9), 3, 3)
> > xtmp <- xtable(tmp)
> > digits(xtmp) <- c(0,0,3,4)
> > print(xtmp, include.rownames = FALSE) # row names
produced :
> % latex table generated in R 2.12.0 by xtable 1.5-6 package
> % Mon Nov 22 17:35:00 2010
> \begin{table}[ht]
> \begin{center}
> \begin{tabular}{rrr}
> \hline
> 1 & 2 & 3 \\
> \hline
> -2 & -2.158 & 2.8886 \\
> 1 & 1.330 & 0.4677 \\
> -0 & 0.486 & -0.3319 \\
> \hline
> \end{tabular}
> \end{center}
> \end{table}
But this won't work :
> > mydata
> TEST t ddl p CONDITION
> 2 R1 3.01109061083632 16 0.00828552765650315 C1
> 3 R2 3.30476953908811 16 0.00447412002109504 C1
> 4 DR 2.86343993410509 16 0.0112631908739966 C1
> 5 R1 1.05386387510206 16 0.30760068470456 C2
> 6 R2 3.04997140665209 16 0.00763921045771104 C2
> 7 DR 2.25175987512241 16 0.0387401575011488 C2
but
> > xtable(mydata,digits=2)
produced
> % latex table generated in R 2.12.0 by xtable 1.5-6 package
> % Mon Nov 22 18:13:47 2010
> \begin{table}[ht]
> \begin{center}
> \begin{tabular}{rlllll}
> \hline
> & TEST & t & ddl & p & CONDITION \\
> \hline
> 2 & R1 & 3.01109061083632 & 16 & 0.00828552765650315 & C1 \\
> 3 & R2 & 3.30476953908811 & 16 & 0.00447412002109504 & C1 \\
> 4 & DR & 2.86343993410509 & 16 & 0.0112631908739966 & C1 \\
> 5 & R1 & 1.05386387510206 & 16 & 0.30760068470456 & C2 \\
> 6 & R2 & 3.04997140665209 & 16 & 0.00763921045771104 & C2 \\
> 7 & DR & 2.25175987512241 & 16 & 0.0387401575011488 & C2 \\
> \hline
> \end{tabular}
> \end{center}
> \end{table}
I have also tried setting the digits with c(0,0,4,0,4,0), using also the
'display' argument to specify the type of each column... noway...
What am I missing ?
Thanks in advance
Sylvain Clément
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