Try str(svy) and see what formats the seperate variables have. It may give you a clue as to what is happening.
An alternative approach is to see if the reshape package can help you. See See http://had.co.nz/reshape for more information on the package. --- On Sat, 9/27/08, Keith Schnakenberg <[EMAIL PROTECTED]> wrote: > From: Keith Schnakenberg <[EMAIL PROTECTED]> > Subject: [R] reshape "Error in data[, timevar] : incorrect number of > dimensions" > To: r-help@r-project.org > Received: Saturday, September 27, 2008, 4:57 PM > I have two waves of a survey given to students at various > middle > schools and high schools, with student id numbers for each > student. I > am having difficulty reshaping the file from long to wide. > > My code is below: > > library(foreign) > svy <- read.spss("studsur4.SAV") > > svy.wide <- reshape(svy, timevar="WAVE", > idvar="id", direction="wide") > > "id" is the student identification number, and > "WAVE" takes values 1 > and 2. I get the following error: > > Error in data[, timevar] : incorrect number of dimensions > > I would provide reproducible code but I can't reproduce > the error > with any other data. I would appreciate any conjectures as > to why > this is happening. > > Thanks, > Keith > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, > reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
