Others have shown how to create a vector of names, but here are a couple of other things you might want to look at.
If you are only using these datasets within R, then you might consider not saving the data, just the random seeds, then when you need the data again you can just generate it. Also look at the g.data package, it provides methods for automatically saving and loading datasets. Another option for creating filenames is the tempfile command. hope this helps, Greg Snow, Ph.D. Statistical Data Center, LDS Hospital Intermountain Health Care [EMAIL PROTECTED] (801) 408-8111 >>> "Leite,Walter" <[EMAIL PROTECTED]> 09/22/05 08:21AM >>> Dear R-Help members, I have a question about how to save to the hard drive the one thousand datasets I generated in a simulation. The datasets are created in a "for" loop that repeatedly creates normally distributed datasets, such as the example below: Library(MASS) for (number in 1:1000) { dataset = mvrnorm(n = 400, mu = c(0,0,0), Sigma = matrix(c(1,0.3,0.3,0.3,1,0.3,0.3,0.3,1),3,3)) } I don't know how to write the datasets with different names to the hard drive. I have solved the problem before by creating a list of names (file1.txt, file2.txt,file3.txt, etc...) in Microsoft Excel, reading it to R with read.table, and using write.table to write each file with the name I created in Excel. I want to know if it is possible to create a list of file names automatically within R to save the datasets created in my simulation. Thank you for your help, Walter L. Leite ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html