Sorry, overlooked the need for fold[r].ijs,
Mike
Sent from my iPad
> On 22 Oct 2022, at 00:14, Ian Clark <earthspo...@gmail.com> wrote:
>
> Yes.
> On my machine, having restored the original App Store app, it gives:
>
> not found:
> /private/var/mobile/Containers/Data/Application/6AF656DB-BA4F-4FEA-BC8B-81302C6746B2/Documents/j/addons/dev/fold/foldr.ijs
>
> |nonce error
>
> | - F:.+i.6
>
> Sorry, did I write: fold.ijs earlier?
> You need foldr.ijs as well.
>
>> On Sat, 22 Oct 2022 at 00:02, Henry Rich <henryhr...@gmail.com> wrote:
>>
>> The error message said that the foldr script is missing, didn't it?
>>
>> Henry Rich
>>
>>
>> On Fri, Oct 21, 2022, 6:49 PM 'Mike Day' via Programming <
>> programm...@jsoftware.com> wrote:
>>
>>> Getting off topic, but why don’t the new Fold primitives work in the
>> iPad
>>> app, given it’s J9.03 beta-k?
>>>
>>> The info screen links to a NuVoc description. I tried the example
>>> starting with
>>>
>>> v=: dyad define
>>> z=. y + 0.01
>>> z [smoutput x ; 'v' ; y ; '-->' ; z
>>> )
>>> …..
>>>
>>> Pasting into a new script and running leads to the kind of error reported
>>> by Ed.
>>>
>>> Cheers,
>>>
>>> Mike
>>>
>>> Sent from my iPad
>>>
>>>> On 21 Oct 2022, at 23:21, Ian Clark <earthspo...@gmail.com> wrote:
>>>>
>>>> Bob writes
>>>>> I am pretty sure that the iPad version of J is version 901
>>>>
>>>> Actually it's the beta-k version of j903.
>>>> j901 is the App Store "Product Name" (…poor choice) and is carved in
>>>> stone, alas.
>>>> Updates have to keep the same name, else it's an entirely new product.
>>>>
>>>>> On Fri, 21 Oct 2022 at 19:57, 'robert therriault' via Programming <
>>>>> programm...@jsoftware.com> wrote:
>>>>>
>>>>> Ed,
>>>>>
>>>>> I am pretty sure that the iPad version of J is version 901
>>>>>
>>>>> Cheers, bob
>>>>>
>>>>>> On Oct 21, 2022, at 11:55, Jan-Pieter Jacobs <
>>> janpieter.jac...@gmail.com>
>>>>> wrote:
>>>>>>
>>>>>> I don't know whether you'r only looking for a tacit function, but
>> this
>>>>>> would also likely work if fold is unavailable for you (untested):
>>>>>>
>>>>>> {{ for_val. y do. if. f val do. val_index{y return. end. end.}}
>> coords
>>>>>>
>>>>>> Jan-Pieter
>>>>>>
>>>>>> On Fri, 21 Oct 2022, 19:51 Ed Gottsman, <edward.j.gotts...@gmail.com
>>>
>>>>> wrote:
>>>>>>
>>>>>>> Pascal,
>>>>>>>
>>>>>>> Your original solution is perfect for me—I don’t happen to need the
>>>>>>> index. And there may in fact be no items with f = 1.
>>>>>>>
>>>>>>> Very clever: it gets a place of honor in the flashcard deck :-).
>>>>>>>
>>>>>>> Many thanks.
>>>>>>>
>>>>>>> Ed
>>>>>>>
>>>>>>> Sent from my iPad
>>>>>>>
>>>>>>>> On Oct 21, 2022, at 12:46 PM, 'Pascal Jasmin' via Programming <
>>>>>>> programm...@jsoftware.com> wrote:
>>>>>>>>
>>>>>>>> if you want the index rather than the coordinate values, then
>>>>>>>>
>>>>>>>> (1 i.~ f) y
>>>>>>>>
>>>>>>>> will "short circuit" to the first 1
>>>>>>>>
>>>>>>>> and
>>>>>>>>
>>>>>>>> ({~ 1 i.~ f)
>>>>>>>>
>>>>>>>> may be faster to get first coordinates than my original solution,
>>>>> though
>>>>>>> errors if there are no items with 1 = f
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Friday, October 21, 2022 at 12:55:41 p.m. EDT, 'Pascal Jasmin'
>> via
>>>>>>> Programming <programm...@jsoftware.com> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> }.^:(0 = f@{.)^:_
>>>>>>>>
>>>>>>>> will return the list with the head being the first f not equal 0.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Friday, October 21, 2022 at 12:19:41 p.m. EDT, Ed Gottsman <
>>>>>>> edward.j.gotts...@gmail.com> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> Hi. I’m blanking on something basic and research isn’t helping.
>>> When
>>>>>>> the blindingly obvious solution is revealed I will blame a
>> combination
>>>>> of
>>>>>>> sleep deprivation and senescence.
>>>>>>>>
>>>>>>>> I’ve got a long list of coordinates ordered by desirability. I
>> want
>>> to
>>>>>>> invoke f (a custom script) with each coordinate in turn. f may
>>> return 0
>>>>>>> (failure), in which case I want to invoke it again with the next
>>>>>>> coordinate. When f (eventually) returns 1, I want to terminate—the
>>>>>>> remainder of the coordinates should not be processed. (Note that
>> the
>>>>> very
>>>>>>> first invocation of f may return 1.)
>>>>>>>>
>>>>>>>> This *almost* feels like ^: in its Do While form. Almost. It also
>>>>>>> feels like SCs around list operations (though they seem to be
>> limited
>>> to
>>>>>>> primitives).
>>>>>>>>
>>>>>>>> Help.
>>>>>>>>
>>>>>>>> Many thanks.
>>>>>>>>
>>>>>>>> Ed
>>>>>>>>
>>>>>>>> Sent from my iPad
>>>>>>>>
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