> One issue is the behaviour of unary operators "+" and "-". > > If trim is TRUE, then "a" is one thing, but "+a" returns > "trim(a)", which might be different. > > Also "1*a" would be different from "a" and "a+0"
I think this is ok. In the ggplot2 package I use + to join together multiple plots, where a + b != b + a, and a + b + c (sometimes) = a. This doesn't seem to cause much confusion for users. Hadley -- http://had.co.nz/ ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
