Wouldn't the students/teachers/schools be enumerated and the properties you are studying be random/correlated according to the enumerated values?
On May 18, 2019 6:57:06 AM PDT, varin sacha via R-help <r-help@r-project.org> wrote: >Dear R-Experts, > >In a data simulation, I would like a balanced distribution with a >nested structure for classroom and teacher (not for school). I mean 50 >pupils belonging to C1, 50 other pupils belonging to C2, 50 other >pupils belonging to C3 and so on. Then I want the 50 pupils belonging >to C1 with T1, the 50 pupils belonging to C2 with T2, the 50 pupils >belonging to C3 with T3 and so on. The school don’t have to be nested, >I just want a balanced distribution, I mean 60 pupils in S1, 60 other >pupils in S2 and so on. >Here below the reproducible example. >Many thanks for your help. > >############## >set.seed(123) ># Génération aléatoire des colonnes >pupils<-1:300 >classroom<-sample(c("C1","C2","C3","C4","C5","C6"),300,replace=T) >teacher<-sample(c("T1","T2","T3","T4","T5","T6"),300,replace=T) >school<-sample(c("S1","S2","S3","S4","S5"),300,replace=T) >############## > >______________________________________________ >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >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. -- Sent from my phone. Please excuse my brevity. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.