On Thu, Sep 2, 2010 at 7:17 AM, Yi <liuyi.fe...@gmail.com> wrote: > Hi, folks, > > runif (n,min,max) is the typical code for generate R.V from uniform dist. > > But what if we need to fix the mean as 20, and we want the values to be > integers only?
It's not clear what you want. Uniformly random integers with expected mean 20 - but what range? Any range centred on 20 will work, for example you could use sample() with replacement. To see the distribution, use sample() table(sample(17:23,10000,TRUE)) which gives a uniform distribution of integers from 17 to 23, so the mean is 20.0057 for 10000 samples. Is that what you want? Barry ______________________________________________ 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.
