Harvey,
Here's an explicit verb that I think does what you ask for:
modvalverb=: 4 : 0
'datalist offset'=. 2{.y
modval=. x
mm=. modval | offset + i.#datalist
mm=. (0 = mm)} mm,:modval
)
12 modvalverb (i.7); 9
9 10 11 12 1 2 3
I'm not sure what the point of giving a datalist is though since the only
thing that gets used from it is the number of items in the list.
On Tue, Dec 25, 2012 at 9:49 AM, PackRat <[email protected]> wrote:
> I have need for a verb like residue | but which returns the mod value
> instead of 0. For example, instead of 9 10 11 0 1 2 3 4... for a mod
> value of 12, it will return 9 10 11 12 1 2 3 4.... I can do it easily
> for a single datum, but I can't see how to do it in one fell swoop for
> a whole list of data.
>
> I have specific applications in mind, so the verb needs to look
> something like this: modvalue verb datalist;offset (although the
> modvalue x argument could just as easily be among the y arguments).
>
> A specific example might be: 12 verb datalist;9
> This would return the values in the first paragraph above.
>
> I had been thinking along these lines:
>
> mm=. modval | (offset + i.(#datalist))
> if. 0 = mm do. mm=. modval end.
>
> But this, of course, does not work.
>
> I would appreciate explicit code only; no tacit expressions. Much
> thanks in advance!
>
>
> Harvey
>
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