That missing file is an addon. It should be shipped with the system,
but perhaps Ian didn't pick it up. I think you should be able to get it
by updating all your addons.
Henry Rich
On 2/28/2022 2:07 PM, Richard Donovan wrote:
Thanks Julian,
Unfortunately Fold doesn’t seem to have made it to the iOS platform yet.
5 f0 i.4
not found:
/private/var/mobile/Containers/Data/Application/84605E1E-B9BA-4FE7-8FFA-1C6C5C0A29E0/Documents/j/addons/dev/fold/foldr.ijs
|nonce error: f0
| 0 x&{{y[1 Z: y > x}} F..+y
load 'foldr'
not found:
/private/var/mobile/Containers/Data/Application/84605E1E-B9BA-4FE7-8FFA-1C6C5C0A29E0/
As a matter of interest what did people use for this facility before F. was
invented?
Richard Donovan
On 28 Feb 2022, at 18:49, Julian Fondren <jfond...@minimaltype.com> wrote:
You can use Fold and the related Z: (Terminate Fold)
0 {{ y[1 Z: y > 10 }} F.. + 1 5 6 16
12
0 {{ y[1 Z: y > 10 }} F:. + 1 5 6 16
1 6 12
analogous to +/ and +/\ with the argument shortened to where the sum exceeds 10:
+/1 5 6
12
+/\1 5 6
1 6 12
as a verb:
f0 =: {{ 0 x&{{ y[1 Z: y > x }} F.. + y }}
10 f0 1 5 6 16
12
5 f0 1 5 6 16
6
100 f0 1 5 6 16
28
------- Original Message -------
On Monday, February 28th, 2022 at 12:40 PM, Richard Donovan
<rsdono...@hotmail.com> wrote:
I hope someone can enlighten me…
If I have a list of numbers, how can I write a verb which will can perform a
cumulative sum +/\ which will stop when a target sum is reached?
For example, is the list contains 1,5,6,16… I wish to find at what position the
cumulative sum exceeds 10. I feel that when I am dealing with monster lists, it
would be beneficial if the function could stop as soon as the target had been
reached. (If the target was not reached by the end of the list, it would be
good if the index of 1 greater than the last item could be returned, as occurs
with other j verbs).
Thanks in advance,
Richard Donovan
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