Have a look at
</. 4 4 $ 'abcdefghijklmnop'
Henry Rich
On 7/10/2012 10:16 AM, Rudi Mann wrote:
> Ian,
>
> thanks for the solution!
>
> Devon,
>
> the CRLFs come from the fact that the data source was a text editor. I
> imported the file as string and wanted to reshape it into a character
> matrix to subsequently strip the last two columns to get rid of the
> CRLFs when I stumbled over the two-byte-character issue.
>
> This is part of an approach to solve one of those word-search puzzles
> where one is given a rectangular letter array and has to find all the
> words which can run in any of the eight principal directions. What I
> still need is an elegant expression that converts a character matrix
> into its diagonal strings (as an array of strings or another array),
> like:
>
> ]original=. 3 4$'ABCDEFGHIJKL'
> ABCD
> EFGH
> IJKL
>
> diag original
> A
> BE
> CFI
> DGJ
> HK
> L
>
> I'm currently trying some index magic, but I think there may be a more
> direct approach.
>
> Rudi
>
> Am 10.07.2012 um 15:42 schrieb Devon McCormick:
>
>> Also, you may find a CRLF delimited series of strings less handy to
>> use than a more J-like representation like this:
>>
>> $cs=.'ABCD';'DEÄF';'GÖßI';'ÄÖÜß'
>> 4
>>
>> or the tabular version:
>>
>> $>cs
>> 4 8
>>> cs
>> ABCD
>> DEÄF
>> GÖßI
>> ÄÖÜß
>>
>> It's easy enough to convert this to the form you originally gave:
>>
>> ;cs,&.><CR,LF
>> ABCD
>> DEÄF
>> GÖßI
>> ÄÖÜß
>>
>> $;cs,&.><CR,LF
>> 31
>>
>> But that's the sort of thing I would usually only do when I'm ready to
>> output the strings for printing or something.
>>
>> On Tue, Jul 10, 2012 at 6:09 AM, Ian Clark <earthspo...@gmail.com>
>> wrote:
>>> You've got utf-8 chars in there. You need to convert to "wide" chars,
>>> then you'll get a matrix that behaves itself.
>>>
>>> These links may be helpful:
>>> http://www.jsoftware.com/jwiki/Guides/Unicode
>>> http://www.jsoftware.com/jwiki/Guides/UnicodeGettingStarted
>>>
>>>
>>> On Tue, Jul 10, 2012 at 10:46 AM, Rudi Mann <r...@happyplating.eu>
>>> wrote:
>>>> Hi,
>>>>
>>>> yesterday I stumbled over the following feature:
>>>>
>>>> charstring=.'ABCD',CR,LF,'DEÄF',CR,LF,'GÖßI',CR,LF,'ÄÖÜß',CR,LF
>>>>
>>>> charstring
>>>> ABCD
>>>> DEÄF
>>>> GÖßI
>>>> ÄÖÜß
>>>>
>>>> #charstring
>>>> 31
>>>> (How bizarre! I counted 24; 16 letters and 8 control characters!)
>>>>
>>>> I want to create a 4 by 4 character array from this string in
>>>> order to
>>>> perform operations like transpose, row and column indexing, diagonal
>>>> extraction etc. How can I do that?
>>>>
>>>> Rudi
>>>> r...@happyplating.eu
>>>>
>>>>
>>>>
>>>>
>>>> ----------------------------------------------------------------------
>>>> For information about J forums see http://www.jsoftware.com/forums.htm
>>> ----------------------------------------------------------------------
>>> For information about J forums see http://www.jsoftware.com/
>>> forums.htm
>>
>>
>>
>> --
>> Devon McCormick, CFA
>> ^me^ at acm.
>> org is my
>> preferred e-mail
>> ----------------------------------------------------------------------
>> For information about J forums see http://www.jsoftware.com/forums.htm
>
> Rudolf Mann
>
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