> And without wanting to be rude or anything, your opinion carries very > little weight in a project like R. You've arrived on the list and been > very critical of the work of others. Now there is nothing wrong with > being critical if it is constructive, and additionally with something > like R you need to be constructive *and* contribute back. I'm not saying
You are holding Wacek to a very high standard. Why is not acceptable to say that this part of R is hard to understand without having to provide a better solution? subset() _is_ confusing to novice R users. You can not anticipate what subset(df, select = a) will do unless you know what variables are defined in the local environment and what variables are defined in the data frame. It is hard to understand how it works without a deep understanding of environments and it is hard to teach all the special cases. It is difficult to reliably use subset within another function. This comes from my personal experience with subset (good for interactive use, never program with) and from my experiences teaching ~80 students how to use R over the last two years. Hadley -- http://had.co.nz/ ______________________________________________ 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.
