I'm talking about the order of the arguments within a verb 'see_arg'.
Inside the verb 'see_arg', the initial value must be passed as the left
argument, and then
(on next iteration) the result of the fold.
And as the right value, the values from the collapsing array must be passed.
The direction of the fold shouldn't matter.
Here are the results if you make the order of the arguments for the verb
'see_arg' more intuitive:
see_arg =: dyad : 0
NB. See argument order
echo x, y
x + y
)
7 ] F:. see_arg 1 2 3 4
7 1
8 2
10 3
13 4
8 10 13 17
7 ] F:: see_arg 1 2 3 4
7 4
11 3
14 2
16 1
11 14 16 17
Sergey.
21.02.2021 22:34, Raul Miller пишет:
I have a question about your proposal:
7 ] F:: see_arg 1 2 3 4
4 7
3 11
2 14
1 16
11 14 16 17
The right to left folds pass arguments in a right to left fashion.
But why should this be the case for a left to right fold?
(I am trying to understand why a left to right fold should be
intuitively thought of as having a right to left pattern. I am not
saying you are wrong about that, but I am having trouble coming up
with an example where this would make more sense.)
Thanks,
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