[R] how to change automatically 0=no and 1=yes

[Dimitris Rizopoulos]

try this:

dat <- data.frame(matrix(sample(0:1, 100 * 20, TRUE), 100, 20))
############
dat[] <- lapply(dat, factor, levels = c(0, 1), labels = c("no", 
"yes"))
dat


I hope it helps.

Best,
Dimitris

----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/16/336899
Fax: +32/16/337015
Web: http://www.med.kuleuven.ac.be/biostat/
     http://www.student.kuleuven.ac.be/~m0390867/dimitris.htm


----- Original Message ----- 
From: "Muhammad Subianto" <subianto at gmail.com>
To: <R-help at stat.math.ethz.ch>
Sent: Wednesday, June 15, 2005 3:58 PM
Subject: [R] how to change automatically 0=no and 1=yes


> Dear R-helpers,
> I have dataset (data.frame) like below,
>   x1  x2  x3   x4   x5  x6  x7  x8  x9 ... x1200
>    0    0    0    1    1    0    0    1    1
>    1    0    0    1    1    0    0    1    1
>    0    1    0    1    1    0    0    1    1
>    1    1    0    1    1    0    0    1    1
> ...
> How can I change automatically 0=no and 1=yes.
>
> Thank you very much in advance.
> Kindly regards,
> Muhammad Subianto
>
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