[R] return vector of element names for vector, matrix or array

[Michael Friendly]

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 = ":")
>
>


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Michael Friendly     Email: friendly AT yorku DOT ca
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