Or class(influencia) and then see it is in this vector:
> methods(xtable)
[1] xtable.anova* xtable.aov* xtable.aovlist*
[4] xtable.coxph* xtable.data.frame* xtable.glm*
[7] xtable.lm* xtable.matrix* xtable.prcomp*
[10] xtable.summary.aov* xtable.summary.aovlist* xtable.summary.glm*
[13] xtable.summary.lm* xtable.summary.prcomp* xtable.table*
[16] xtable.ts*
On Jul 21, 2010, at 8:20 PM, John Kane wrote:
Try
str(influencia)
I don't think xtable is intended to print lists.
--- On Wed, 7/21/10, Silvano <silv...@uel.br> wrote:
From: Silvano <silv...@uel.br>
Subject: [R] xtable
To: r-help@r-project.org
Received: Wednesday, July 21, 2010, 4:15 PM
Hi,
How do I build a table from a regression model adjusted
using xtable?
Commands are:
modelo1 = lm(Y~X1 + X2)
influencia = influence.measures(modelo1)
require(xtable)
xtable(influencia)
but it isn't work.
Less informative words were never typed. Why did you not include the
error message? Was it because the answer would have been clear?
Error in UseMethod("xtable") :
no applicable method for 'xtable' applied to an object of class
"infl"
You could have extracted the first element of influencia and used
xtable on the unlisted values.
ctl <- c(4.17,5.58,5.18,6.11,4.50,4.61,5.17,4.53,5.33,5.14)
trt <- c(4.81,4.17,4.41,3.59,5.87,3.83,6.03,4.89,4.32,4.69)
group <- gl(2,10,20, labels=c("Ctl","Trt"))
weight <- c(ctl, trt)
anova(lm.D9 <- lm(weight ~ group))
summary(lm.D90 <- lm(weight ~ group - 1))# omitting intercept
influencia = influence.measures(lm.D9)
str(influencia)
> xtable(matrix(unlist(influencia[1]), ncol=6))
% latex table generated in R 2.11.1 by xtable 1.5-6 package
% Wed Jul 21 21:22:30 2010
\begin{table}[ht]
\begin{center}
\begin{tabular}{rrrrrrr}
\hline
& 1 & 2 & 3 & 4 & 5 & 6 \\
\hline
1 & -0.44 & 0.31 & -0.44 & 1.02 & 0.09 & 0.10 \\
2 & 0.27 & -0.19 & 0.27 & 1.15 & 0.04 & 0.10 \\
3 & 0.07 & -0.05 & 0.07 & 1.24 & 0.00 & 0.10 \\
4 & 0.57 & -0.40 & 0.57 & 0.90 & 0.15 & 0.10 \\
5 & -0.27 & 0.19 & -0.27 & 1.16 & 0.04 & 0.10 \\
6 & -0.21 & 0.15 & -0.21 & 1.19 & 0.02 & 0.10 \\
7 & 0.07 & -0.05 & 0.07 & 1.24 & 0.00 & 0.10 \\
8 & -0.25 & 0.18 & -0.25 & 1.17 & 0.03 & 0.10 \\
9 & 0.15 & -0.10 & 0.15 & 1.22 & 0.01 & 0.10 \\
10 & 0.05 & -0.04 & 0.05 & 1.24 & 0.00 & 0.10 \\
11 & 0.00 & 0.05 & 0.07 & 1.24 & 0.00 & 0.10 \\
12 & 0.00 & -0.17 & -0.24 & 1.17 & 0.03 & 0.10 \\
13 & 0.00 & -0.09 & -0.12 & 1.23 & 0.01 & 0.10 \\
14 & -0.00 & -0.40 & -0.57 & 0.91 & 0.15 & 0.10 \\
15 & -0.00 & 0.46 & 0.66 & 0.83 & 0.19 & 0.10 \\
16 & -0.00 & -0.30 & -0.43 & 1.04 & 0.09 & 0.10 \\
17 & -0.00 & 0.54 & 0.77 & 0.72 & 0.24 & 0.10 \\
18 & -0.00 & 0.08 & 0.11 & 1.23 & 0.01 & 0.10 \\
19 & 0.00 & -0.12 & -0.17 & 1.21 & 0.01 & 0.10 \\
20 & -0.00 & 0.01 & 0.01 & 1.25 & 0.00 & 0.10 \\
\hline
\end{tabular}
\end{center}
\end{table}
Might have been better to wait on the xtable processing until you had
added back the column names though.
*********
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***********
David Winsemius, MD
West Hartford, CT
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