> -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On > Behalf Of Gina Liao > Sent: Wednesday, August 05, 2009 7:15 AM > To: r-h...@stat.math.ethz.ch > Subject: [R] hi, i have a problem in R > > > Hi, I'm new to R language. > > There is a problem I couldn't understand. > > Hope you can answer my question. > > > > when i type > > > > >for (i in 1:10){ > > + print(sample(9,4,replace=T)) > > +} > > > > and it shows ten of four numbers > > and how do I do to calculate the frequencies in each list? > > > > I know there is a hint; list10<-vector(mode="list",length=4) > > > > But I don't know how to use it. > > How do I name each list? > > > > There are my problems. > > Thanks!! > > > > Best Regards, > > vie >
It is not clear to me what you are trying to calculate frequencies for. Are you trying to get 10 sets of 4 random digits, or 4 sets of ten random digits? What frequencies are you trying to calculate? To generate 10 rows of 4 digits I would probably do something like digits <- matrix(sample(9,40,replace=T), nrow=10) Then you could get frequencies of digits by row or by column. But I am not sure what you want. Hope this is helpful, Dan Daniel J. Nordlund Washington State Department of Social and Health Services Planning, Performance, and Accountability Research and Data Analysis Division Olympia, WA 98504-5204 ______________________________________________ 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.
