I'm about to commit the following new feature for R-devel aka "pre-R 1.7.0": o str() now shows ordered factors differently than unordered ones. The RFC (Request For Comment) is about which string should be printed. I was going to use the following > str(ordered(4:1)) Ord.factor w/ 4 levels "1"<"2"<"3"<"4": 4 3 2 1 i.e., use "Ord.factor" where we currently have "Factor". I found this better than "Ord.fac." or "Ordered" which would be closer in length than the current "Factor" {string length *is* an issue for str()}. Comments are welcome. Martin Maechler <maechler@stat.math.ethz.ch> http://stat.ethz.ch/~maechler/ Seminar fuer Statistik, ETH-Zentrum LEO C16 Leonhardstr. 27 ETH (Federal Inst. Technology) 8092 Zurich SWITZERLAND phone: x-41-1-632-3408 fax: ...-1228 <><