> I've given thought in the past to the question of estimating the R > user base, and came to the conclusion that it is impossible to get > an estimate of the number of users that one could trust (or even > put anything like a margin of error to).
I find it hard to believe that it should be harder to estimate the number of whales than the number of R users. Sure there's a definitional problem of exactly what an R user is, but there must be some way to come up with some useful estimates. What about snowball sampling with R-help as an initial frame? Hadley -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University 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.
