Joey T. said:
/:~ (0 5 10 15 I. a) </. a
┌─────────┬──────────┬──────────────┬──────────────┐
│1 2 3 4 5│6 7 8 9 10│11 12 13 14 15│16 17 18 19 20│
└─────────┴──────────┴──────────────┴──────────────┘
However when I try the same thing:
/:~ (0 5 10 15 I. a) </. a
┌─────────┬──────────┬──────────────┬──────────────┐
│2 5 3 1 4│9 7 8 10 6│12 14 11 13 15│20 19 16 18 17│
└─────────┴──────────┴──────────────┴──────────────┘
j805/j64/windows
Library 8.05.14
So on Joey's system the box contents and the boxes are sorted. On my system
just the boxes are sorted. ???
Skip
Skip Cave
Cave Consulting LLC
On Sun, Sep 24, 2017 at 3:03 PM, Joey K Tuttle <j...@qued.com> wrote:
> /:~ (0 5 10 15 I. a) </. a
> ┌─────────┬──────────┬──────────────┬──────────────┐
> │1 2 3 4 5│6 7 8 9 10│11 12 13 14 15│16 17 18 19 20│
> └─────────┴──────────┴──────────────┴──────────────┘
>
> But that is a more boring (and perhaps less useful) result...
>
>
> > On 2017Sep 24, at 12:57, Skip Cave <s...@caveconsulting.com> wrote:
> >
> > Jimmy G said:
> >
> > With key /. and <
> >
> > (0 5 10 15 I. a) </. a
> >
> > <<<>>>
> >
> > a
> >
> > 9 12 2 20 14 11 13 15 7 5 3 19 8 1 4 16 10 6 18 17
> >
> >
> > (0 5 10 15 I. a) </. a
> >
> > ┌──────────┬──────────────┬─────────┬──────────────┐
> >
> > │9 7 8 10 6│12 14 11 13 15│2 5 3 1 4│20 19 16 18 17│
> >
> > └──────────┴──────────────┴─────────┴──────────────┘
> >
> >
> > So Jimmy's solution does box the ranges, but the ranges are not in the
> > range order specified by the left argument. Why? And how can you create a
> > verb that will keep the ranges in ascending order?
> >
> >
> >
> > Skip Cave
> > Cave Consulting LLC
> >
> > On Sun, Sep 24, 2017 at 2:37 PM, Jimmy Gauvin <jimmy.gau...@gmail.com>
> > wrote:
> >
> >> With key /. and <
> >>
> >> (0 5 10 15 I. a) </. a
> >>
> >> you can also count them
> >>
> >> (0 5 10 15 I. a) #/. a
> >>
> >>
> >> On Sun, Sep 24, 2017 at 3:19 PM, Skip Cave <s...@caveconsulting.com>
> >> wrote:
> >>
> >>> So that brings up another interesting problem. How
> >>> to
> >>> box ranges
> >>> ?
> >>> :
> >>>
> >>> ]a=:>:?~20
> >>> 9 12 2 20 14 11 13 15 7 5 3 19 8 1 4 16 10 6 18 17
> >>>
> >>> 0 5 10 15 brng a
> >>> ┌─────────┬──────────┬──────────────┬──────────────┐
> >>> │2 5 3 1 4│9 7 8 10 6│12 14 11 13 15│20 19 16 18 17│
> >>> └─────────┴──────────┴──────────────┴──────────────┘
> >>>
> >>> S
> >>> o how do you construct brng?
> >>>
> >>> Skip Cave
> >>> Cave Consulting LLC
> >>>
> >>> On Sun, Sep 24, 2017 at 2:09 PM, 'Mike Day' via Programming <
> >>> programm...@jsoftware.com> wrote:
> >>>
> >>>> I was about to send something when we had to go out for a bit...
> >>>>
> >>>> My best so far is
> >>>> ((] #~ 1 = I.)~ (0 _1 + ])) ~
> >>>> assuming I've copied it correctly...
> >>>>
> >>>> Mike
> >>>>
> >>>> Please reply to mike_liz....@tiscali.co.uk.
> >>>> Sent from my iPad
> >>>>
> >>>>> On 24 Sep 2017, at 18:45, Skip Cave <s...@caveconsulting.com> wrote:
> >>>>>
> >>>>> Marshall,
> >>>>>
> >>>>> Wow! that is neat! I hadn't really understood dyadic I. but this
> >> forced
> >>>> me
> >>>>> to try to understand it:
> >>>>>
> >>>>> 8 100 (]#~1=I.) 2 10 45 300
> >>>>>
> >>>>> 10 45
> >>>>>
> >>>>> 8 100 I. 2 10 45 300
> >>>>>
> >>>>> 0 1 1 2
> >>>>>
> >>>>> 1 = 8 100 I. 2 10 45 300
> >>>>>
> >>>>> 0 1 1 0
> >>>>>
> >>>>> (1 = 8 100 I. 2 10 45 300) # 2 10 45 300
> >>>>>
> >>>>> 10 45
> >>>>>
> >>>>> 8 100 I. 2 10 45 300
> >>>>>
> >>>>> 0 1 1 2
> >>>>>
> >>>>> 1 8 100 I. 2 10 45 300
> >>>>>
> >>>>> 1 2 2 3
> >>>>>
> >>>>> 1 8 100 I. 2 10 45 300 450
> >>>>>
> >>>>> 1 2 2 3 3
> >>>>>
> >>>>> 1 8 100 350 I. 2 10 45 300 450
> >>>>>
> >>>>> 1 2 2 3 4
> >>>>>
> >>>>> 1 8 100 350 I. 300 2 45 10 450
> >>>>>
> >>>>> 3 1 2 2 4
> >>>>>
> >>>>> So now I'm getting a feel for I. Reading the terse Vocabulary
> >>> description
> >>>>> of dyadic I. didn't help much in making the I. functionality clear,
> >> at
> >>>>> least for me. The NuVoc description wasn't much more helpful, but the
> >>>>> examples after the description in Nuvoc cleared things up
> >> considerably.
> >>>>>
> >>>>> Also, the dissect tool was very helpful in figuring out how J parsed
> >>> the
> >>>>> whole dyadic verb. Who is the author of the dissect tool? That's a
> >>> great
> >>>>> help in learning J.
> >>>>>
> >>>>> Skip
> >>>>>
> >>>>> Skip Cave
> >>>>> Cave Consulting LLC
> >>>>>
> >>>>> On Sun, Sep 24, 2017 at 3:14 AM, Marshall Lochbaum <
> >>> mwlochb...@gmail.com
> >>>>>
> >>>>> wrote:
> >>>>>
> >>>>>> Try
> >>>>>>
> >>>>>> rng =: ] #~ 1=I.
> >>>>>>
> >>>>>> it's about half as fast because I. is not very well-optimized.
> >>>>>>
> >>>>>> Marshall
> >>>>>>
> >>>>>>> On Sun, Sep 24, 2017 at 02:29:31AM -0500, Skip Cave wrote:
> >>>>>>> Here's a function I came up with to select numbers in a vector
> >> which
> >>>> are
> >>>>>>> within some range.
> >>>>>>>
> >>>>>>> Find all the numbers between 10 & 100 in a set of random numbers
> >>> from 0
> >>>>>> to
> >>>>>>> 200:
> >>>>>>>
> >>>>>>>
> >>>>>>> rng =. 4 : '((({.x)</y)*.(({:x)>/y))#y'
> >>>>>>>
> >>>>>>>
> >>>>>>> 10 100 rng ?50$200
> >>>>>>>
> >>>>>>> 89 91 32 85 84 27 31 20 28 66 96 93 22 85 39 97 82 35 90 67 34 35
> >> 67
> >>> 95
> >>>>>> 50
> >>>>>>>
> >>>>>>>
> >>>>>>> Between 120 & 180:
> >>>>>>>
> >>>>>>>
> >>>>>>> 120 180 rng ?50$200
> >>>>>>>
> >>>>>>> 148 163 133 165 150 178 121 146 161 179
> >>>>>>>
> >>>>>>>
> >>>>>>> Is there a more concise/efficient way to select numbers in a range?
> >>>>>>>
> >>>>>>> Skip Cave
> >>>>>>> Cave Consulting LLC
> >>>>>>> ------------------------------------------------------------
> >>> ----------
> >>>>>>> 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
> >>>> ------------------------------------------------------------
> ----------
> >>>> 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
> >>
> > ----------------------------------------------------------------------
> > 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
