On Fri, Nov 9, 2012 at 4:37 PM, tesssa <tesara...@gmail.com> wrote: > I am following a document teaching how to use regression and right at the > onset I get an R error. I understand that variables "conc" and "signal" > should have the same length but I am using the what R manual suggests to > drop the error and it is not cooperating. What gives? The manual says > that the default is na.ombit by the way, not that it's addition does > anything > > How do I make it omit the extra items? I want to follow this document but > it seems that R has changed since that one was written > > Here is the code > > conc = c(0 10 20 30 40 50)
Off the cuff, it seems you're missing commas here. RMW > signal = c (4, 22, 44, 60, 82) > lm( signal ~ conc) > > #Error in model.frame.default(formula = signal ~ conc, drop.unused.levels = > TRUE) : > #variable lengths differ (found for 'conc') > > > lm (conc~signal, na.action=na.omit) > #Error in model.frame.default(formula = conc ~ signal, na.action = na.omit, > : > #variable lengths differ (found for 'signal') > > > lm (conc~signal, na.action=na.exclude) > #Error in model.frame.default(formula = conc ~ signal, na.action = > na.exclude, : > #variable lengths differ (found for 'signal') > > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/lm-function-strange-error-tp4649065.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. ______________________________________________ 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.
