I was getting pretty much the same error recently, when I joined this list (I'm new to R), and the solution turned out to be that I needed to call as.integer() on a certain value, before passing it to a function. In my case it was a value read/returned from commandArgs(), but I suppose there are other situations where this could arise.
Milt Epstein Programmer in Computational Genomics Institute for Genomic Biology (IGB) University of Illinois at Urbana-Champaign (UIUC) [email protected] On Sun, 26 Apr 2015, John Kane wrote: > We need some idea of what you were actually doing (i.e code, data, ... ) > > See http://adv-r.had.co.nz/Reproducibility.html for some suggestions. > John Kane > Kingston ON Canada > > > > -----Original Message----- > > From: [email protected] > > Sent: Sun, 26 Apr 2015 16:41:32 -0400 > > To: [email protected] > > Subject: [R] knittr: non-numeric argument to binary operator > > > > knittr is giving me the above error. The code it is failing on is > > multiplying two numeric features of a data frame. I can run the code > > by hand and it works fine, but when I try to knit my document, knittr > > chokes on the same line. > > > > When kitting: > > > > Quitting from lines 161-175 (RepData_PeerAssessment2.Rmd) > > Error in storm_data$PROPDMG * storm_data$property_damage_cost_factor : > > non-numeric argument to binary operator > > Calls: <Anonymous> ... handle -> withCallingHandlers -> withVisible -> > > eval -> eval > > Execution halted > > > > Running the same lines manually (CTRL+Enter) from the .Rmd file: > > > >> storm_data$total_damage <- > > + (storm_data$PROPDMG * storm_data$property_damage_cost_factor) + > > + (storm_data$CROPDMG * storm_data$crop_damage_cost_factor) > >> str(storm_data$total_damage) > > num [1:902297] 25 2.5 25 2.5 2.5 2.5 2.5 2.5 25 25 ... > >> > > > > Call me baffled. Any pointers are greatly appreciated at this point. > > > > -- > > Cheers, Mark > > > > Mark Drummond > > [email protected] > > > > When I get sad, I stop being sad and be Awesome instead. TRUE STORY. > > > > ______________________________________________ > > [email protected] mailing list -- To UNSUBSCRIBE and more, see > > 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. > > ____________________________________________________________ > Can't remember your password? Do you need a strong and secure password? > Use Password manager! It stores your passwords & protects your account. > > ______________________________________________ > [email protected] mailing list -- To UNSUBSCRIBE and more, see > 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. > ______________________________________________ [email protected] mailing list -- To UNSUBSCRIBE and more, see 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.
