How about getting statistics of downloads of the R-base from the different CRAN mirrors ?
This should (in principle) allow one to estimate the total # of people who intended to use R at some point in their life. It may even be possible to analyze those numbers for temporal trends since the day of release of each R version is known. Christos _________________________________________________________________ Hotmail: Trusted email with powerful SPAM protection. [[alternative HTML version deleted]] ______________________________________________ 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.