By crash, I mean that it shuts the program and no error message is provided. However, my question is more general - how to get the two versions of code below to return the same string of random numbers. The code provided will run without incident and is only provided to make the problem clear. The true code that causes the crash isn't necessary, only that I need to be able to split it into smaller chunks while maintaining the integrity of the random sequence even if the program closes and all information is lost.
-----Original Message----- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Ellerbe, Caitlyn Nicole Sent: Wednesday, May 08, 2013 2:06 PM To: r-help@R-project.org Subject: [R] Correctly Setting New Seed Could someone please suggest a method to store the current random seed. I'm having trouble understanding how to correctly use set.seed and .Random.seed. Specifically, I have the following code that crashes: set.seed(seed) for(i in 1:10){ print( runif(1)) } To get around this I need to split the number of iterations into chunks: set.seed(seed) for(i in 1:5){ print(runif(1)) new.seed<-.Random.seed } set.seed(new.seed) for(i in 6:10){ print(runif(1)) } When I compare the sequence of numbers from the single run to the sequence from the chunked code they don't match. Is the .Random.seed argument in the wrong position or is there another way to accomplish this? ------------------------------------------------------- Caitlyn Ellerbe Division of Biostatistics Department of Public Health Medical University of South Carolina [[alternative HTML version deleted]] ______________________________________________ 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. ______________________________________________ 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.
