On Mar 21, 2007, at 4:16 AM, Uwe Ligges wrote: > Michael Kubovy wrote: >> Dear r-helpers, >> Could you please help me solve the following problem: When I run >> require(AlgDesign) >> trt <- LETTERS[1:5] >> blk <- 10 >> trtblk <- 3 >> BIB <- optBlock(~., withinData = trt, blocksizes = rep(trtblk, blk)) >> In response to the last command, R complains: >> Error in optBlock(~., withinData = trt, blocksizes = rep(trtblk, >> blk)) : >> object ".Random.seed" not found >> The documentation of optBlock() in AlgDesign doesn't say that I >> needed to set .Random.seed. I thought it was initiated >> automatically at the beginning of a session. What am I missing? > > > The first line in that function is > seed <- .Random.seed > but .Random.seed is generated at the first use of R's RNG, hence > maybe later. This means the function contains a bug which you > should report to the package maintainer, please. > > Best, > Uwe Ligges
Bob Wheeler's response: > From: Bob Wheeler <[EMAIL PROTECTED]> > Date: March 21, 2007 9:19:29 AM EDT > To: Michael Kubovy <[EMAIL PROTECTED]> > Subject: Re: > > Each workspace in R requires you to set a random seed to start. You > have not done this. It is an R artifact, and has nothing to do with > AlgDesign. > -- > Bob Wheeler --- http://www.bobwheeler.com/ > ECHIP, Inc. --- Randomness comes in bunches. ______________________________________________ R-help@stat.math.ethz.ch 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.
