On Tue, Jan 25, 2011 at 06:00:36AM -0800, vioravis wrote: > > I am trying to do binning on three variables (3d binning). The bin boundaries > are specified by the user separately for each variable. I used the bin2 > function in the 'ash' package for 2d binning that involves only two > variables but didn't any package for similar binning with three variables. > Are there any packages or codes available for 3d binning?? Thank you.
Try the following, possibly with different breaks for each dimension. x <- matrix(rnorm(30000), ncol=3) breaks <- seq(-1, 1, length=5) xints <- data.frame( x1=cut(x[, 1], breaks=breaks), x2=cut(x[, 2], breaks=breaks), x3=cut(x[, 3], breaks=breaks)) table(complete.cases(xints)) xtabs(~ ., xints) Hope this helps. Petr Savicky. ______________________________________________ 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.
