encapsulate them into a function and call the function ?? -- Bert
On Thu, Oct 11, 2012 at 11:09 AM, KoopaTrooper <ncoop...@tulane.edu> wrote: > I'm trying to figure out how to repeat a series of commands in R and have the > outputs added to a dataframe after each iteration. > > My code starts this way... > > a<-read.csv("File1.csv") > b<-read.csv("File2.csv") > > a$Z<-ifelse(a$Z=="L",sample(1:4,length(a$Z),replace=TRUE),ifelse(a$Z=="M",sample(5:8,length(a$Z),replace=TRUE),ifelse(a$Z=="U",sample(9:10,length(a$Z),replace=TRUE),""))) > a$Z<-as.numeric(a$Z) > b$Z<-ifelse(b$Z=="L",sample(1:4,length(b$Z),replace=TRUE),ifelse(b$Z=="M",sample(5:8,length(b$Z),replace=TRUE),ifelse(b$Z=="U",sample(9:10,length(b$Z),replace=TRUE),""))) > b$Z<-as.numeric(b$Z) > > This is basically just starting off with a new and partially random data set > every time that then goes through a bunch of other commands (not shown) and > ends with the following outputs saved. > > Output1, Output2, Output3, Output4 > > where each of these is just a single number. My questions is: > > 1. How do I repeat the entire series of commands x number of times and save > each of the outputs into a structure like this: > Output1 Output2 Output3 Output4 > Iteration 1 > Iteration 2 > Iteration 3 > etc. > > Not even sure where to start. Are loops the answer? Thanks, > > > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/Repeating-a-series-of-commands-tp4645881.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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. -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ 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.