Dear Robert Thank you very much for all the help, now i am enjoying working with all of you as you make R look simple and interesting.
--- On Thu, 10/9/09, Robert Baer <[email protected]> wrote: From: Robert Baer <[email protected]> Subject: Re: [R] Help on percentage of random numbers for different classes To: "KABELI MEFANE" <[email protected]>, [email protected] Date: Thursday, 10 September, 2009, 8:46 AM > I am sorry for asking this stupid question, but i have been running in > circles. I want to randomly generate a scaling point of between 1 and 10, for > say hundred entries, where the first 10% percent is has rates between 2 and > 7, the next 15% 3 and 7, 20% between 3 and 9, 20% between 3 and 10, 35% > between 5 and 10. The problem is that i can only generate the usual 100 using > runif function Something like this might work for you: # set total sample size to greater than or equal to 100 # and mod 0 wrt 100 to preserve the percentages # here say 200 ss=200 # Create a vector with the desired properties vector=c( sample(2:7,ss/10,replace=TRUE), sample(3:7,ss/15,replace=TRUE), sample(3:9,ss/20,replace=TRUE), sample(3:10,ss/20,replace=TRUE), sample(5:10,ss/10,replace=TRUE)) # print out the vector vector > > > y<-c(ceiling(10*runif(100))) >> y > [1] 10 8 5 2 4 1 6 7 1 6 8 8 8 9 7 7 8 8 2 7 3 10 1 7 >1 > [26] 10 4 8 8 8 9 3 7 8 4 6 7 2 3 1 9 8 2 6 7 4 8 8 9 >7 > [51] 6 5 4 1 8 7 9 8 10 5 3 7 5 5 4 4 7 4 10 4 9 1 5 10 >10 > [76] 5 5 10 7 3 4 4 9 10 6 2 6 6 6 3 8 2 2 4 4 10 6 9 4 >3 > > I just want to try to avoid small numbers as much as possible. I am open to > suggestions, please please please. > > Kabeli > > > > [[alternative HTML version deleted]] > > > ______________________________________________ > [email protected] 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. > [[alternative HTML version deleted]]
______________________________________________ [email protected] 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.
