Yes, I mean "won't annoy the user", will allow them to do anything they need to do with a dataframe (write to csv, etc.), but will allow me to test for in a down stream function of the analysis to stop the function and present an error. Adding something to the class attribute seems like the right thing to do. With my clarification do you think these seems like a sensible thing to do? Thank you for all of the help. kindest regards,
Stephen On Mon, Feb 20, 2017 at 5:25 PM, Ista Zahn <istaz...@gmail.com> wrote: > It depends on what you mean by 1). If you mean "won't annoy the user" then > yes, e.g., add something to the class attribute. If 1) means "can't be > discovered by the user" then no (at least not easily). Anything you can see > they can see. > > Best, > Ista > > > On Feb 20, 2017 4:21 PM, "stephen sefick" <ssef...@gmail.com> wrote: > > Hello, > > I would like to add something to a data frame that is 1) invisible to the > user, 2) has no side effects, and 3) I can test for in a following > function. Is this possible? I am exploring classes and attributes and I > have thought about using a list (but 1 and 2 not satisfied). Any help would > be greatly appreciated. > > I did not provide a reproducible example because I see this as more of a R > language question, but I will be happy to make a toy example if that would > help. > > I appreciate all of the help. > > kindest regards, > > -- > Let's not spend our time and resources thinking about things that are so > little or so large that all they really do for us is puff us up and make us > feel like gods. We are mammals, and have not exhausted the annoying little > problems of being mammals. > > -K. Mullis > > "A big computer, a complex algorithm and a long time does not equal > science." > > -Robert Gentleman > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posti > ng-guide.html > and provide commented, minimal, self-contained, reproducible code. > > > -- Let's not spend our time and resources thinking about things that are so little or so large that all they really do for us is puff us up and make us feel like gods. We are mammals, and have not exhausted the annoying little problems of being mammals. -K. Mullis "A big computer, a complex algorithm and a long time does not equal science." -Robert Gentleman [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
