Hello All, sample() only sample on one variable x. But I'm interested in sampling more than one variable without replacement.
Suppose I have 3 vectors x, y, z. I want to draw samples from all three vectors such that the combination of the three elements in each draw is not the same as any previous draws. I could use expand.grid to generate a vector out of the three vectors. But when the number of vectors are large and the number of elements in some vectors are large, it will be infeasible to do so. If you know there is a method on sampling on more than one variables, would you please let me know? Thank you! -- Tom ______________________________________________ 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.
