The same comment Jeroen Ooms made about your last email also applies to this one: it is better suited to R-help. -- Joshua Ulrich | about.me/joshuaulrich FOSS Trading | www.fosstrading.com
On Sun, Aug 10, 2014 at 1:18 PM, Grant Rettke <g...@wisdomandwonder.com> wrote: > Good afternoon, > > Today I was working on a practice problem. It was simple, and perhaps > even realistic. It looked like this: > • Get a list of all the data files in a directory > • Load each file into a dataframe > • Merge them into a single data frame > > Because all of the columns were the same, the simplest solution in my > mind was to `Reduce' the vector of dataframes with a call to > `merge'. That worked fine, I got what was expected. That is key > actually. It is literally a one-liner, and there will never be index > or scoping errors with it. > > Now with that in mind, what is the idiomatic way? Do people usually do > something else because it is /faster/ (by some definition)? > > Kind regards, > > > Grant Rettke | ACM, ASA, FSF, IEEE, SIAM > g...@wisdomandwonder.com | http://www.wisdomandwonder.com/ > “Wisdom begins in wonder.” --Socrates > ((λ (x) (x x)) (λ (x) (x x))) > “Life has become immeasurably better since I have been forced to stop > taking it seriously.” --Thompson > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel