Looking at what I sent, below your message, it looks fine to me albeit a
little hard to read with all the indenting, especially since the indent
character is ">":
>>> 3 33 9 99 12 13 1 2 10 11 1000000
>>>> : ; ((]`".) @. isChar) &.> '3';33;'9 99';12 13;1;2;'10 11 1e6'
>>> 4 34 10 100 13 14 2 3 11 12 1000001
I wonder if my formatting the code as fixed-width in Gmail messes up the
display for some people? The above is formatted "Sans Serif", below as
fixed width.
>>> 3 33 9 99 12 13 1 2 10 11 1000000
>>>> : ; ((]`".) @. isChar) &.> '3';33;'9 99';12 13;1;2;'10 11 1e6'
>>> 4 34 10 100 13 14 2 3 11 12 1000001
To me, the latter appears to highlight some spurious spaces that have crept
in to the expression but looks the same as the former. The incremented
version of the expression will not run if cut pasted into a J session the
way it appears in the attachment, so caveat coder.
On Sun, Feb 26, 2023 at 2:38 PM 'Michael Day' via Programming <
programm...@jsoftware.com> wrote:
> Oh, sorry.
>
> However, if you look at the copy of your message below my
> reply, both still appearing hereunder, you'll see something rather like
>
> |
> |: ; ((]`".) @. isChar) &.> '3';33;'9 99';12 13;1;2;'10 11 1e6'
> |
>
> (I've typed in the 3 vertical bars at the left-hand side!)
> In any case, it looked a bit odd! As I recall, what the iPad showed
> at the
> lhs resembled monadic transpose, |: ! It definitely wasn't >: .
>
> The iPad doesn't have the message any more, so I can't easily check
> directly.
>
> No matter - sorry I commented on that, but the essential points were
> made,
> that there are pleasing ways of dealing with these mixed types which can
> avoid using gerunds.
>
> Cheers,
>
> Mike
>
> On 26/02/2023 19:19, Devon McCormick wrote:
> > The second result was simply an increment to demonstrate that the result
> is
> > numeric.
> >
> > On Sun, Feb 26, 2023 at 6:28 AM 'Mike Day' via Programming <
> > programm...@jsoftware.com> wrote:
> >
> >> This is quite nice, though nothing to do with gerunds as such!
> >>
> >> ; ]&.":each '3';33;'9 99';12 13;1;2;'10 11 1e6'
> >> 3 33 9 99 12 13 1 2 10 11 1000000
> >> I have been known to use ".@": - but using under only just occurred to
> me!
> >>
> >> This also works:
> >> abc =. 2345
> >> ; ]&.": each '3';33;'9 99';12 13;1;2;'10 11 1e6';'abc'
> >> 3 33 9 99 12 13 1 2 10 11 1000000 2345
> >>
> >> though using names could prove difficult without building in some
> checks:
> >> ; ]&.": each '3';33;'9 99';12 13;1;2;'10 11 1e6';'def';'abc'
> NB.
> >> def is undefined
> >> 3 33 9 99 12 13 1 2 10 11 1000000 2345
> >> Checking the boxed form for empty elements might suffice.
> >>
> >> BTW, I'm puzzled by Devon's second "result": 4 34 10 etc. Perhaps a
> slip
> >> with
> >> copy&paste?
> >>
> >> Cheers,
> >>
> >> Mike
> >>
> >> Sent from my iPad
> >>
> >>> On 26 Feb 2023, at 09:48, Devon McCormick <devon...@gmail.com> wrote:
> >>>
> >>> If you don't want to be at the mercy of your data's ordering, you
> could
> >>> selectively convert to numeric or not:
> >>> isChar=: ' ' -: [: ({.) 0 $ ]
> >>> ; ((]`".) @. isChar) &.> '3';33;'9 99';12 13;1;2;'10 11 1e6'
> >>> 3 33 9 99 12 13 1 2 10 11 1000000
> >>>> : ; ((]`".) @. isChar) &.> '3';33;'9 99';12 13;1;2;'10 11 1e6'
> >>> 4 34 10 100 13 14 2 3 11 12 1000001
> >>>
> >>>> On Sat, Feb 25, 2023 at 4:39 PM Henry Rich <henryhr...@gmail.com>
> >> wrote:
> >>>> Now that gerund"n applies gerund cyclically, the need for the oblique
> >>>> trick is reduced.
> >>>>
> >>>> Henry Rich
> >>>>
> >>>> On 2/25/2023 3:26 PM, neit...@gaertner.de wrote:
> >>>>>> I want to convert the second one into numerical data
> >>>>>> Can you simplify the above expression?
> >>>>> Applying a gerund cyclically, as asked for in the subject:
> >>>>>
> >>>>> ] list =. ;: 'foo 1 bar 2.17 baz 3.14'
> >>>>> +---+-+---+----+---+----+
> >>>>> |foo|1|bar|2.17|baz|3.14|
> >>>>> +---+-+---+----+---+----+
> >>>>>
> >>>>> , ]`(".each)/. list
> >>>>> +---+-+---+----+---+----+
> >>>>> |foo|1|bar|2.17|baz|3.14|
> >>>>> +---+-+---+----+---+----+
> >>>>>
> >>>>> (,: datatype each) , ]`(".each)/. list
> >>>>> +-------+-------+-------+--------+-------+--------+
> >>>>> |foo |1 |bar |2.17 |baz |3.14 |
> >>>>> +-------+-------+-------+--------+-------+--------+
> >>>>> |literal|boolean|literal|floating|literal|floating|
> >>>>> +-------+-------+-------+--------+-------+--------+
> >>>>>
> >>>>>
> >>>>> Obliquing over a vector is often overlooked. It picks up every item
> >>>>> as a singleton "diagonal". The final "," is required to compensate
> >>>>> for that.
> >>>>>
> >>>>> Martin Neitzel
> >>>>>
> ----------------------------------------------------------------------
> >>>>> 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
> >>>
> >>> Quantitative Consultant
> >>> ----------------------------------------------------------------------
> >>> For information about J forums see http://www.jsoftware.com/forums.htm
> >> ----------------------------------------------------------------------
> >> 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
Quantitative Consultant
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
