Message-ID: <1c5ba7de-817d-45f6-a78e-c0b21d668c3d@p2g2000prf.googlegroups.com>
Date: 2009-03-14T21:24:33Z
From: Andrew
Subject: plotting question
In-Reply-To: <49BC1E49.50506@education.wisc.edu>
check out the interaction.plot. This *may* be what you are looking
for.
?interaction.plot
On Mar 15, 8:14?am, David Kaplan <dkap... at education.wisc.edu> wrote:
> Greetings all,
>
> I have two questions. ?I have a data set that is arranged in the example
> below. ?I wish to obtain a plot of the performance of each ID over Year
> on v1. ?It's not clear how I set this up?
>
> ID ?Year ? V1 ?
> 1 ? 1980 ? ?1 ?
> 1 ? 1981 ? ?2
> 1 ? 1982 ? ?6
> 1 ? 1983 ? ?4
> 2 ? 1980 ? ?5
> 2 ? 1981 ? ?5
> 2 ? 1982 ? ?5
> 2 ? 1983 ? ?6
>
> Also,I would like to transpose the data to have the variable across the
> columns such as
>
> ID ? v1980 ? v1981 v1982 v1983
> 1 ? ? ? 1 ? ? ? 2 ? ? ?6 ? 4
> 2 ? ? ? 5 ? ? ? 5 ? ? ?5 ? 6
>
> Is there a straightforward way to do this in R?
>
> Thanks in advance,
>
> David
>
> --
> =======================================================================
> David Kaplan, Ph.D.
> Professor
> Department of Educational Psychology
> University of Wisconsin - Madison
> Educational Sciences, Room, 1061
> 1025 W. Johnson Street
> Madison, WI 53706
>
> email: dkap... at education.wisc.edu
> homepage:http://www.education.wisc.edu/edpsych/default.aspx?content=kaplan.html
> Phone: 608-262-0836
>
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