When I have a matrix MMM with long column names and short row names, then I will normally display the transpose t(MMM). It will be much easier to read. I will also set the emacs window holding *R* to very wide (150 or so) and then I can see the whole width of the transposed matrix simultaneously.
Rich On Thu, Apr 4, 2013 at 8:30 PM, Ross Boylan <r...@biostat.ucsf.edu> wrote: > Over a decade ago there was a problem with model.frame when the variable > names were long: > https://stat.ethz.ch/**pipermail/r-help/2002-August/**024492.html<https://stat.ethz.ch/pipermail/r-help/2002-August/024492.html> > > I have similar symptoms with R 2.15.3 on Windows 7: > > Browse[2]> x <- model.matrix(formula(myform), p$data) > Error in model.frame.default(object, data, xlev = xlev) (from mice.R#601) : > object is not a matrix > > My attempt at a work-around did not help: > Browse[2]> x <- model.matrix(formula(myform), as.matrix(p$data)) > Error in model.frame.default(object, data, xlev = xlev) (from mice.R#601) : > 'data' must be a data.frame, not a matrix or an array > Browse[2]> formula(myform) > ~educ_sg + ethnic_sg + hiv + J10 + A5 + mar_stat + orientation + > Born_US ~ educ_sg + ethnic_sg + hiv + J10 + A5 + mar_stat + > orientation + Born_US + (DWPAD_ActAvoid + DWPAD_EducConf + > DWPAD_PasAvoid + DWPAD_Support) * ethnic_sg * racGayDiscStress + > 0 > > Notice there are many three-way interactions, which certainly will produce > long column names. > > There was a suggestion in the old thread to set width= in aov, for use by > deparse, but I'm not using aov and there are no obvious hooks to deparse. > The level names are also long and include spaces, inequality signs, and > periods (also "-" if it uses raw numeric values); perhaps that is the > culprit. > > Any suggestions for how to diagnose or fix? This is all happening inside > a package that is for general use, and so require recoding of variable and > level names to something brief is not very attractive. However, changing > these within the program might be workable. > > Ross Boylan > > ______________________________**________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/**listinfo/r-help<https://stat.ethz.ch/mailman/listinfo/r-help> > PLEASE do read the posting guide http://www.R-project.org/** > posting-guide.html <http://www.R-project.org/posting-guide.html> > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ 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.
