bob therriault wrote:
> I have not found any primitives that have a built in rank of _1 (items).
For several reasons, you won't see any primitives with an explicit rank of _1.
For one thing, f"(-N) is really f"(-N)"_ which
would mess with @ and other functional calculus.
So verbs with unbounded rank are good suspects for "item users". Consider:
~. y Unique items
~: y Unique items (as boolean mask)
= y Self-classify items
,. y Ravel items of y
x -. y Exclude items of x that are cells of y
x i. y x i: y x I. y Index of items of x in y
;: Parse items of y
{. {: }. }: Take/drop items of y
A. C. Permutations of items of y
e. Membership in [opened] items of y
# Count/filter items of y
But it's not just verbs with are item-oriented. Consider:
u/ y Dyad u between items of y
u;.n y Cut items of y
u/.y Classify items of y
x u/. y Classify items of y
/: \: Grade/sort the items of y
u\y u\. Affixes of the items of y
And it gets stranger yet. Consider:
m`:3 y Insert items of m between items of y cyclically (m/ y)
f...@g f&g f&.g Apply f to each "item" of g
(indirect)=.y Assign names to items
Items, items, everywhere, nor any _1 to rank.
-Dan
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