Hi, It probably means that somehow your data is stored incorrectly. Try using str(name of the dataframe) and see if everything is named what you expect and is the class you think it is with equal numbers of observations.
HTH, Josh On Fri, Nov 26, 2010 at 3:39 AM, effeesse <scarpin...@gmail.com> wrote: > > Hi! My regression is lm(Y ~ A + B + C + D + E + F + G), where each covariate > "A--G" is of the kind "as.factor(column of the dataframe)". > I receive an error for the first explanatory variable "A": Error in column > of the dataframe: wrong number of dimensions. What does it mean? > -- > View this message in context: > http://r.789695.n4.nabble.com/lm-regression-tp3060123p3060123.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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. > -- Joshua Wiley Ph.D. Student, Health Psychology University of California, Los Angeles http://www.joshuawiley.com/ ______________________________________________ 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.
