return vector of element names for vector, matrix or array
On 11/27/2010 6:13 PM, Joshua Wiley wrote:
Interesting use of outer, but I think you're overthinking it ;) expand.grid(dimnames(x3))
Ah, thanks. I guess I was thinking outer the box ;-)
If you want it as a vector separated by colons... apply(expand.grid(dimnames(x3)), 1, paste, collapse = ":")
Michael Friendly Email: friendly AT yorku DOT ca Professor, Psychology Dept. York University Voice: 416 736-5115 x66249 Fax: 416 736-5814 4700 Keele Street Web: http://www.datavis.ca Toronto, ONT M3J 1P3 CANADA