Hi,
My first suggestion would be to supply a sample data (maybe using the
function dput) showing what you have, what you want to do, and what
you've tried (you say that subset() didn't work but we don't know how
you've typed it).
Then, we'll see!
Ivan
Le 5/10/2010 14:35, Silvano a écrit :
Hi,
I have a dataset with many variables and observations.
The variable Group has two levels: C and P,
the Month variable has four levels: 0, 1, 2 and 3.
I want to extract a subset of the variable Weight, considering only 1
and 3 levels for Months of the Group variable.
I tried the command subset but it did not work. Any suggestions?
Thanks,
--------------------------------------
Silvano Cesar da Costa
Departamento de Estatística
Universidade Estadual de Londrina
Fone: 3371-4346
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--
Ivan CALANDRA
PhD Student
University of Hamburg
Biozentrum Grindel und Zoologisches Museum
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+49(0)40 42838 6231
ivan.calan...@uni-hamburg.de
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
