Many thanks, all clear now. The comma did the trick.
] rawdata =: fread'/home/dg/dev/za2.txt'
1,2,3,b,4
1,2,3,c,4
] data=: >',' cut each cutLF rawdata
┌─┬─┬─┬─┬─┐
│1│2│3│b│4│
├─┼─┼─┼─┼─┤
│1│2│3│c│4│
└─┴─┴─┴─┴─┘
(<*,*'c') = data
0 0 0 1 0
0 0 0 0 0
(<,'c') = data
0 0 0 0 0
0 0 0 1 0
On
,$ &> ;: 'a b c' NB. words, or csv create boxed lists
1 1 1
$ 'Q' NB. atom
$ ,'Q' NB. list
1
On Wednesday, August 30, 2023 at 02:59:28 p.m. EDT, Raul Miller
wrote:
'Q'-:,'Q'
0
--
Raul
On Wed, Aug 30, 2023 at 2:19 PM Dimitri Georganas wrote:
>
> Hi all,
>
> Small problem or
'Q'-:,'Q'
0
--
Raul
On Wed, Aug 30, 2023 at 2:19 PM Dimitri Georganas wrote:
>
> Hi all,
>
> Small problem or newbie trap? After loading a table using 'tables/csv' (or
> tables/dsv' - doesn't matter), I noticed that single characters are not
> being matched using the below approach. (J
Hi all,
Small problem or newbie trap? After loading a table using 'tables/csv' (or
tables/dsv' - doesn't matter), I noticed that single characters are not
being matched using the below approach. (J version 9.4) on Ubuntu Linux
22.04.
Is there some hidden character that causes the match to fail?
The issue of the cost/benefit function to choose between an O(m*n)
approach and an O((m+n)*log m) approach is difficult, and probably
does not have a perfect solution.
Still, designing an approach which has better worse case behavior
seems relatively straightforward. For example:
minpos=:
Markus,
You have asked a very timely question. I have been updating the Primer over the
last month and GUI part 1 is the page that I am currrently working on. Ed's
suggestion is an excellent one for the time being. I would appreciate any
feedback that you can give as I update the GUI section
Markus,
When I started, I pulled on the thread that starts at
https://code.jsoftware.com/wiki/Guides/Window_Driver
I’d be happy to (try to) answer any questions.
Ed
> On Aug 30, 2023, at 4:36 PM, Schmidt-Gröttrup, Markus
> wrote:
>
> I need help on GUI programming.
> The page
I need help on GUI programming.
The page https://code.jsoftware.com/wiki/Help/Primer/100_GUI_part_1
unfortuneatly is not up to date, I miss the menu item Edit|Form Editor.
Any tutorial available in the wiki?
Thanks for a tip,
Markus
1. For lists, sort-then-search is more expensive than the hashtable
usually. Also, the order of inputs matters, as tolerant-equals is not
transitive.
2. For tables, which we were discussing, sort (always intolerant)
doesn't get the job done. The entire first column might be tolerantly
Shouldn't tolerant i.~ use grade, sort and a binary search?
Thanks,
--
Raul
On Tue, Aug 29, 2023 at 10:19 PM Henry Rich wrote:
>
> See https://code.jsoftware.com/wiki/Vocabulary/IFamily#Performance .
>
> Tolerant i.-family operations on arrays are tough. They end up doing
> sequential
Hello Henry, thanks a lot!
I must have read this page once, but hadn't made the connection.
Adding !.0 does the trick wonderfully, and I can forget my workaround (what
workaround?)
Ben
On Wed, 30 Aug 2023 at 12:19, Henry Rich wrote:
> See
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