Note that R requires that anything placed AFTER the ... to be matched exactly so one can force exact matching on sb by putting it after the ... like this:
R> temp<-function(...,sb) print(sb) R> temp(2,s=3) Error in print(sb) : Argument "sb" is missing, with no default Chuck Cleland <ccleland <at> optonline.net> writes: : : I don't think it's a bug, it's partial matching of : argument names. To avoid it, use exact argument names in : your call to the function: : : temp(sb=2,s=3) : [1] 2 : : From the R language definition: : : "Argument matching: Formal arguments are matched to supplied : arguments first by exact matching on tags, then by partial : matching on tags, and finally by positional matching." : : http://cran.r-project.org/doc/contrib/R_language.pdf : : Richard Morey wrote: : > The following code prints [1] 2, as it should : > : > temp<-function(ab,...){ : > print(ab) : > } : > temp(2,s=3) : > : > However, this code prints [1] 3: : > : > temp<-function(sb,...){ : > print(sb) : > } : > temp(2,s=3) : > : > It should still print [1] 2. It appears : > that if a variable in ... begins with the same letter as another variable, : > the value in the variable in ... overwrites the value in the variable with : > the same first letter. : > : > I didn't see this bug reported elsewhere. : > : > Richard Morey : > : > Is this a bug or am I missing something? : > : > output of R.version : > platform i686-pc-linux-gnu : > arch i686 : > os linux-gnu : > system i686, linux-gnu : > status : > major 1 : > minor 9.1 : > year 2004 : > month 06 : > day 21 : > language R : > : > : ______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
