plotting question
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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