Re: [Bug-apl] Question about behavior of ⍋

[Jay Foad]

Dyalog (same behaviour as NARS, I think):

      ⍋'AAA' 'Y' 'BBB' 'CC'
DOMAIN ERROR

      Z←'AA' 'XX' 'AAA' 'XXX'
      ⍋⎕UCS¨Z
DOMAIN ERROR

      ⎕ML←2
      ⍋⊃Z
1 3 2 4

Jay.

On 9 July 2014 03:59, Elias Mårtenson <address@hidden> wrote:
> I was looking specifically at the results of grade on a two-dimensional
> array. I missed the fact that both APL2 and NARS fails on arrays of depth 2.
>
> What does Dyalog and APLX do in these cases?
>
> Regards,
> Elias
>
>
> On 9 July 2014 10:52, Blake McBride <address@hidden> wrote:
>>
>> No, same results as IBM APL 2.
>>
>>
>>
>> On Tue, Jul 8, 2014 at 9:42 PM, Elias Mårtenson <address@hidden> wrote:
>>>
>>> So NARS is giving the same results as GNU APL then?
>>>
>>>
>>> On 8 July 2014 22:50, Blake McBride <address@hidden> wrote:
>>>>
>>>> Interestingly, in NARS200 I get all of the same results as in IBM APL 2
>>>> except the following:
>>>>
>>>>       ⍋⊃z
>>>> 1 3 2 4
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Tue, Jul 8, 2014 at 9:41 AM, Blake McBride <address@hidden>
>>>> wrote:
>>>>>
>>>>> For what it is worth, IBM APL 2 gives:
>>>>>
>>>>>       ⍋'AAA' 'Y' 'BBB' 'CC'
>>>>> DOMAIN ERROR
>>>>>       ⍋'AAA' 'Y' 'BBB' 'CC'
>>>>>       ∧
>>>>>
>>>>>       Z←'AA' 'XX' 'AAA' 'XXX'
>>>>>       ⎕UCS¨Z
>>>>> 65 65  88 88  65 65 65  88 88 88
>>>>>       ⍋⎕UCS¨Z
>>>>> DOMAIN ERROR
>>>>>       ⍋⎕UCS¨Z
>>>>>       ∧
>>>>>
>>>>>       ⊃Z
>>>>> AA
>>>>> XX
>>>>> AAA
>>>>> XXXX
>>>>>       ⍋⊃Z
>>>>> DOMAIN ERROR
>>>>>       ⍋⊃Z
>>>>>       ∧
>>>>>
>>>>>
>>>>> I have no real preference regarding this.  I am just providing this for
>>>>> informational purposes.  Please feel free with other tests you would like 
>>>>> me
>>>>> to perform.
>>>>>
>>>>> Thanks.
>>>>>
>>>>> Blake
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Tue, Jul 8, 2014 at 5:45 AM, Juergen Sauermann
>>>>> <address@hidden> wrote:
>>>>>>
>>>>>> Hi Elias,
>>>>>>
>>>>>> nice trick!
>>>>>>
>>>>>> /// Jürgen
>>>>>>
>>>>>>
>>>>>>
>>>>>> On 07/08/2014 08:58 AM, Elias Mårtenson wrote:
>>>>>>
>>>>>> By the way, I found a workaround to the string ordering. The
>>>>>> workaround requires memory on the order of ↑(⍴V)×⌈/⍴¨V for a vector V. 
>>>>>> This
>>>>>> should be enough justification for the proposed extension.
>>>>>>
>>>>>> Here's what I do: instead of doing the following:
>>>>>>
>>>>>>       z[⍋z←'foo' 'bar' 'test' 'aaaaaa']
>>>>>> ┌→──────────────────────────┐
>>>>>> │┌→──┐ ┌→──┐ ┌→───┐ ┌→─────┐│
>>>>>> ││bar│ │foo│ │test│ │aaaaaa││
>>>>>> │└───┘ └───┘ └────┘ └──────┘│
>>>>>> └∊──────────────────────────┘
>>>>>>
>>>>>> I do this:
>>>>>>
>>>>>>       z[⍋⊃z←'foo' 'bar' 'test' 'aaaaaa']
>>>>>> ┌→──────────────────────────┐
>>>>>> │┌→─────┐ ┌→──┐ ┌→──┐ ┌→───┐│
>>>>>> ││aaaaaa│ │bar│ │foo│ │test││
>>>>>> │└──────┘ └───┘ └───┘ └────┘│
>>>>>> └∊──────────────────────────┘
>>>>>>
>>>>>> Regards,
>>>>>> Elias
>>>>>>
>>>>>>
>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>