Linda, the first set of parentheses in takecut encloses a verb I'll name Sam.
The [ and ] inside Sam refer to Sam's arguments, which may not be the same as
the arguments to takecut.
Kip Murray
Sent from my iPad
On Sep 19, 2012, at 9:25 PM, "Linda Alvord" <lindaalv...@verizon.net> wrote:
> Raul, What causes the problem when you replace [ with 2 3 1 1 and
> ] by i.7 ? I thought it might work if I removed @ but it didn't help.
>
> takecut=: [ (*@[ #inv ] </.~ +/\@[ I. #\@])(+/@[ {. ])
> 2 3 1 1 takecut i.7
> ┌───┬─────┬─┬─┐
> │0 1│2 3 4│5│6│
> └───┴─────┴─┴─┘
>
> 2 3 1 1 (*@ 2 3 1 1 #inv (i.7) </.~ +/\@2 3 1 1 I. #\@(i.7))(+/@ 2 3 1 1 {.
> i.7)
> |domain error
> | 2 3 1 1(*@2 3 1 1#inv(i.7)</.~+/\@2 3 1 1 I.#\@(i.7))( +/@2 3 1 1{.i.7)
>
> Linda
>
>
> -----Original Message-----
> From: programming-boun...@forums.jsoftware.com
> [mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Raul Miller
> Sent: Tuesday, September 18, 2012 10:12 AM
> To: programm...@jsoftware.com
> Subject: Re: [Jprogramming] cut y in segments of each size being x's items
>
> P.S. if you want to overtake (instead of length error when the right arg does
> not contain enough elements):
>
> takecut=: [ (*@[ #inv ] </.~ +/\@[ I. #\@]) (+/@[ {. ])
>
> --
> Raul
>
> On Tue, Sep 18, 2012 at 10:08 AM, Raul Miller <rauldmil...@gmail.com> wrote:
>> On Mon, Sep 17, 2012 at 11:14 PM, June Kim (김창준) <junea...@gmail.com> wrote:
>>> It's not so difficult. However, generalizing takecut into allowing 0
>>> as an item in x seems complicated. That is,
>>>
>>> 3 0 2 2 takecut i.7
>>> +-----++---+---+
>>> |0 1 2||3 4|5 6|
>>> +-----++---+---+
>>> 0 0 4 3 0 takecut i.7
>>> +++-------+-----++
>>> |||0 1 2 3|4 5 6||
>>> +++-------+-----++
>>>
>>> Any ideas for simple solutions?
>>
>> takecut=: *@[ #inv ] </.~ +/\@[ I. #\@]
>> 0 0 3 3 0 2 takecut i. 7
>> ┌┬┬─────┬─────┬┬─┐
>> │││0 1 2│3 4 5││6│
>> └┴┴─────┴─────┴┴─┘
>>
>> --
>> Raul
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