Maybe
lessThan=: ({.@:sort -: {.)@,&<&,
Thanks,
--
Raul
On Fri, Mar 13, 2020 at 11:41 AM 'Jon Hough' via Programming
<[email protected]> wrote:
>
> Thanks,
>
> you are, of course, correct, and I should have thought about it a bit more. I
> am trying to make string comparison verbs
> and this will make the solution a little more ugly.
>
> lessThan=: ({.@:sort -: {.)@:;
> 'abc' lessThan 'def'
> 1
>
>
> 'z' lessThan 'ab'
> 1
> Needs a little more work for literals with no rank.
> ]`(1&$)@.((''&-:)@:$) 'z'
>
> As far as I can see there is no string comparison in the J stdlib.
>
> Thanks,
> Jon
>
> On Friday, March 13, 2020, 03:12:48 PM GMT+9, Thomas McGuire
> <[email protected]> wrote:
>
> The first 2 of the list have no rank.
>
> $ each words
>
> $ each words
> ┌┬┬─┬─┬─┬─┐
> │││3│3│4│4│
> └┴┴─┴─┴─┴─┘
> words =: (1$'a');(1$'z');'zza';'abc';'zabc';’abbb'
>
> $ each words
> ┌─┬─┬─┬─┬─┬─┐
> │1│1│3│3│4│4│
> └─┴─┴─┴─┴─┴─┘
> sort words
> ┌─┬────┬───┬─┬────┬───┐
> │a│abbb│abc│z│zabc│zza│
> └─┴────┴───┴─┴────┴───┘
> Above if I give everything a 1 dimensional rank it works as you would expect.
>
> Single letter in quotes is not a string
>
> It happens with single numbers as well:
> b =:1
> $b
>
>
> No output back
>
> Tom McGuire
>
> > On Mar 13, 2020, at 1:19 AM, 'Jon Hough' via Programming
> > <[email protected]> wrote:
> >
> > words =: 'a';'z';'zza';'abc';'zabc';'abbb'
>
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