Well, it's not exactly what you're looking for. Consider if an element is a
nested array. It'll come out as 0.

Regards,
Elias


On 23 May 2014 23:54, Blake McBride <blake1...@gmail.com> wrote:

> Greetings, and sorry about the basic question.
>
> If I have a mixed array, i.e.:
>
> m←5 5⍴⍳25
> m[2;2]←'X'
>
> What I am looking for is the correct way to tell which elements are
> character and which are numeric.
>
> I know I can do:
>
> m∊⎕AV
>
> That gives me exactly what I am looking for.  It just seems like a lot of
> work for each element of m to get compared with each element of ⎕AV.
>  DialogAPL defines monadic ∊ to give this, but IBM APL2 uses it for
> something else.  I just thought there might be an efficient idiom for this
> in IBM APL2.
>
> Thanks.
>
> Blake
>
>

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