Hi Everyone, I recently uploaded the package Oarray to CRAN. After a suggestion from Martin M., I should just clarify that this is a generalisation of zmatrix in the following respects: 1) Can handle arbitrary numbers of extents; 2) Can have arbitrary non-negative offsets (not just zero) that vary across the extents; 3) Can be switched also to have negative offsets, in which case negative subscripts *do not* drop components. Oarray operates quite differently from zmatrix, depending upon the way that match.call() parses the calls to "[.Oarray" and "[<-.Oarray" (I hope that this is stable!). I often use R as a general-purpose computing environment and I have encountered several situations in which arrays with offsets that are not zero or one are useful, hence the generalisation of zmatrix. I would be interested if anyone can suggest any applications in statistics, though! Cheers, Jonathan. Jonathan Rougier Science Laboratories Department of Mathematical Sciences South Road University of Durham Durham DH1 3LE tel: +44 (0)191 374 2361, fax: +44 (0)191 374 7388 http://www.maths.dur.ac.uk/stats/people/jcr/jcr.html -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._