Dear Paul, On Tue, Oct 12, 2010 at 5:16 PM, Paul Gilbert <pgilb...@bank-banque-canada.ca> wrote: > From R-help > ... >>I notice that you have the IPSUR package loaded; you know, just a >>shot in the dark here, but did you try not loading it? >> >>I ask because the vignette is built by making a special choice for >>set.seed, and the workspace that ships with the package might be >>interacting in an unexpected way. > > Is it possible that a package can save a set seed and have the effect that > users get when they save a workspace with the seed set? I think not, but if > so, can we check that packages do not save a random seed? >
Yes, it is possible. For example, in principle, a person could include a workspace in the /data subdirectory of the package (which has had the seed set) and load the workspace when the package is loaded with the .First.lib function. That's not what I did, though, and it was not what I had in mind when I wrote that earlier reply to R-help. At that time I was worried that maybe I goofed and forgot to remove .Random.seed in the vignette, or something else was happening that I didn't understand. Turns out I didn't forget and everything is fine. Maybe somebody else could come up with a reason why a person would want the ability to load a .Random.seed with a package, though I don't have one off the top of my head. Regards, Jay *************************************************** G. Jay Kerns, Ph.D. Associate Professor Department of Mathematics & Statistics Youngstown State University Youngstown, OH 44555-0002 USA Office: 1035 Cushwa Hall Phone: (330) 941-3310 Office (voice mail) -3302 Department -3170 FAX VoIP: gjke...@ekiga.net E-mail: gke...@ysu.edu http://people.ysu.edu/~gkerns/ ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
