It would help if you supplied some code for us to see what you have tried. However something like this would presumably give you the sample data sets --note only n=100 in the example.
mymat <- matrix(NA, ncol= 100, nrow= 100) for (n in 1: 100) { mymat[,n] <- sample(c(0,1), 100, replace = TRUE) } mymat John Kane Kingston ON Canada > -----Original Message----- > From: baile...@ohsu.edu > Sent: Thu, 19 Jul 2012 14:17:43 -0700 (PDT) > To: r-help@r-project.org > Subject: [R] Creating Multiple Repeating samples and Cross Correlating > them. > > I'm having a lot of trouble getting this done and nothing I've written > has > been remotely successful. Basically I have about 64 binary data sets > stored > as vectors, with 72900 entries in each. I am not very familiar with cross > correlations, but I was advised that I should create 1000 randomized date > sets (used sample() for that) to use as a control, then compare the cross > correlation of my real data sets to the controls. First of all I am > having > trouble creating 1000 different sample()'s of the same vector, and then I > am > not all too sure how to cross correlate them Nothing seems to produce > what I > want, all I get are copies of the same sample() of the vector repeated > over > and over. Please Help? > > -- > View this message in context: > http://r.789695.n4.nabble.com/Creating-Multiple-Repeating-samples-and-Cross-Correlating-them-tp4637131.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. ____________________________________________________________ Send any screenshot to your friends in seconds... Works in all emails, instant messengers, blogs, forums and social networks. TRY IM TOOLPACK at http://www.imtoolpack.com/default.aspx?rc=if2 for FREE ______________________________________________ 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.