Thanks Douglas! I am sure that there are other ways in which my R habits are becoming stylistically obsolete. Is there a "manual of R style" somewhere?
albyn On Fri, Nov 14, 2008 at 09:52:50AM -0600, Douglas Bates wrote: > On Thu, Nov 13, 2008 at 5:31 PM, Albyn Jones <[EMAIL PROTECTED]> wrote: > > I have no clue what "autorecode" means. Selecting a subset of a file is > > easy. Suppose your data frame is named X, assuming REGION is numeric: > > > > attach(X) > > X17 = X[REGION == 17,] > > I think it is better style to use > > X17 <- subset(X, REGION == 17) > > Using attach/detach is discouraged these days. The "subset" function, > the"with" function and the general use of the formula/data arguments > in model fitting functions and the lattice graphics functions provide > cleaner approaches than using attach. The problem with attach is that > it has the side-effect of changing the search path, which is, of > course, what it is supposed to do. However, any functions with > side-effects should be used only when you can't find a better > alternative and in this case there are better alternatives. > > _______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-sig-teaching
