ds doesn't look inside verbs. Maybe there should be an option to replace tacit verbs with their definitions, or to execute f. in the parser to expand a tacit definition. I'll have to think about that.

Henry Rich

On 6/3/2013 9:27 AM, Raul Miller wrote:
ds 'hist 6' only shows the starting and ending values, not the
intermediate values.

This is more interesting,  from my point of view:

    hist f.
' O' {~ (] !~ [: i. >:) >/ [: i. [: >./ ] !~ [: i. >:
    ds '('' O'' {~ (] !~ [: i. >:) >/ [: i. [: >./ ] !~ [: i. >:) 6'

Also interesting comparing:

    ds '('' O'' {~ (] !~ i.@>:) >/ [: i. ] >./@:!~ i.@>:) 6'

    ds '('' O'' {~ (!~ i.@>:) >/ i.@(>./@:!~ i.@>:)) 6'

    ds '('' O'' {~ (i.@>: ! ]) >/ i.@(i.@>: >./@:! ])) 6'

and contrasting:

    ds '('' O'' {~ (] >/ i.@(>./))@(i.@>: ! ])) 6'


--
Raul

On Mon, Jun 3, 2013 at 4:00 AM, Linda Alvord <[email protected]> wrote:
You'll want this too.

    pas=: 13 :'(i.>:y)!y'
    pas
] !~ [: i. >:

    pas 6
1 6 15 20 15 6 1

Linda

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Linda Alvord
Sent: Monday, June 03, 2013 3:49 AM
To: [email protected]
Subject: Re: [Jprogramming] z458095869_dissectnopath_

Henry,  ds is fun!

    hist=: 13 :'((pas y)>/i.>./pas y){'' O'''
    histi
' O' {~ pas >/ [: i. [: >./ pas
   hist 6
O
OOOOOO
OOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOO
OOOOOO
O
   ds 'hist 6'
   ds 'hist 8'

It could get even bigger!

Linda


-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Henry Rich
Sent: Sunday, June 02, 2013 9:21 PM
To: [email protected]
Subject: Re: [Jprogramming] z458095869_dissectnopath_

Yes, and Ye Dic spells it out:

m"(-r) y is equivalent to m"(0>.(#$y)-r)"_

Note the final "_

Henry Rich

On 6/2/2013 8:55 PM, Roger Hui wrote:
v b. 0 reports the on what the system thinks are the monadic, left,
and right ranks, and those ranks are always positive.  The following
phrase shows another way that 0"_1 has infinite rank.


     <@(0"_1) i.2 3
┌───┐
│0 0│
└───┘

When the "combining ranks" of a verb are negative, the interpretation
is nasty and counterintuitive.  Some of the nastiness were discussed
in APL papers from the late 1980s.



On Sun, Jun 2, 2013 at 5:10 PM, Raul Miller <[email protected]> wrote:

I think

     0"_1 b. 0
_

I think that result should be _1 _1 _1

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