[R] summary() within a function

[Eric Lecoutre]

Unless 'summary' is the last evaluated object within your function (and 
then it is the one implicitely returned by the function), you have to 
explicitely ask for printing it:


f <- function {
         ...
         model <- lm(rttx[,1] ~ rttx[,2] + 0);
         # Print summary for the model
         print(summary(model));
         ...
}


At 16:35 14/01/2004, Rodrigo Abt wrote:
>Ulisses, could you be a little more specific ?. What OS, R version and data
>you are using ?
>
>I've tested this as an example and works fine (at least for me):
>
> > f<-function(){
>         x<-1:10
>         y<-rnorm(10)
>         s<-lm(y~x+0)
>         summary(s)
>}
>
> >f()
>
>Call:
>lm(formula = y ~ x + 0)
>
>Residuals:
>     Min      1Q  Median      3Q     Max
>-1.8488 -0.6693  0.2065  0.5043  1.5903
>
>Coefficients:
>   Estimate Std. Error t value Pr(>|t|)
>x  0.07631    0.05400   1.413    0.191
>
>Rodrigo Abt B.,
>SII, Chile.
>
>---
>
>Date: Wed, 14 Jan 2004 09:24:22 +0100
>From: uaca at alumni.uv.es
>Subject: [R] summary() within a function
>To: r-help at stat.math.ethz.ch
>Message-ID: <20040114082422.GA18168 at pusa.informat.uv.es>
>Content-Type: text/plain; charset=iso-8859-1
>
>I have the following function
>
>f <- function {
>
>         ...
>
>         model <- lm(rttx[,1] ~ rttx[,2] + 0);
>         summary(model);
>
>         ...
>}
>
>while summary(model) shows the summary if I execute the function line by
>line
>in the Command Line Interface, if I call f() summary is silent
>
>how to solve it? or is there workaround?
>
>thanks in advance
>
>         Ulisses
>
>                 Debian GNU/Linux: a dream come true
>----------------------------------------------------------------------------
>-
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>
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--------------------------------------------------
L'erreur est certes humaine, mais un vrai désastre
nécessite un ou deux ordinateurs. Citation anonyme
--------------------------------------------------
Eric Lecoutre
Informaticien/Statisticien
Institut de Statistique / UCL

TEL (+32)(0)10473050       lecoutre at stat.ucl.ac.be
URL http://www.stat.ucl.ac.be/ISpersonnel/lecoutre