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-help@r-project.org mailing list 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.
