Hi r-help-boun...@r-project.org napsal dne 15.12.2010 14:22:15:
> I get a list object from an iterative function. I'm trying to figure > out the most efficient way to calculate the mean of one element, across > all components of the overall list. > > I've tried > > output <- mean (listobject[[1:5]]$element) As nobody knows exact structure of your listobject there is probably no way to give you any reasonable answer. what does str(listobject) give you? What is result of listobject[[1:5]] I presume that you get something like Error in listobject[[1:5]] : recursive indexing failed at level ... Regards Petr > > to get the mean of "element" in the first five components? > > It doesn't like the $. I'm suspect one of the "apply" functions will > work, but again I've not had success > > > Thanks a bunch. > > J > > ---- > Jim Maas > University of East Anglia > > ______________________________________________ > 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. ______________________________________________ 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.
