I don't agree about the inuitiveness of the order of v. I don't see a
decisive argument either way, & I am content with leaving it as is.
Get a petition with 100 signatures & we can revisit the matter.
Henry Rich
On 2/22/2021 8:18 AM, Hauke Rehr wrote:
I tend to agree.
Why would the control-like vs data-like change from F: to v?
If you want v~ you should write v~ telling the reader what
semantics you actually want, improving readability/documentation.
And if you want to fold on y,x or x,y you should again write just that.
Imo, the only reason for the current order is the equivalent spelling
when x is made part of y
That’s a worse reason than consistent usage of control-like
vs data-like.
Am 22.02.21 um 13:31 schrieb 'Sergey Kamenev' via Programming:
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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