On Tue, Sep 13, 2011 at 7:32 AM, RCulloch <ross.cull...@dur.ac.uk> wrote: > I suspect it is to do with your method of creating the dataframe,
I think the error is actually triggered by quoting the name of the data.frame in the qplot call. I would > check to see if the columns in the df are numeric, which you can do by: > > is.numeric(flat_data$time) Or just use str(flat_data) Best, Ista > > for each variable, if it is not numeric (and at least one must be a > character, given the error message) then redefine as a numeric > > flat_data$time<-as.numeric(flat_data$time) > > I reckon people better versed in R will have a more efficient solution, but > that should work...... > > Ross > > -- > View this message in context: > http://r.789695.n4.nabble.com/ggplot-class-character-problem-tp3809657p3809786.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. > -- Ista Zahn Graduate student University of Rochester Department of Clinical and Social Psychology http://yourpsyche.org ______________________________________________ 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.
