[Rd] class(<matrix>) |--> c("matrix", "arrary") [was "head.matrix ..."]

[Abby Spurdle]

<polite mode>

>    x %inherits% "data.frame"

IMHO, I think that user-defined binary operators are being over-used
within the R community.

I don't think that they're "cute" or stylish.
I think their use should be limited to cases, where they significantly
increase the readability of the code.

However, readability, is a (partly) subjective topic...

</pilote mode>