I understand now I was just defining a verb and applying it twice in the first
case.
Thanks everyone.
From: Programming on behalf of Louis
de Forcrand
Sent: Wednesday, November 20, 2019 9:52 PM
To: programm...@jsoftware.com
Subject: Re: [Jprogramming] Explicit
Think nothing of it. I was back in the highschool today, talking linear
algebra to the very top layer of the high-performing students, having
them write proofs on the board. It is obvious that the distinction
between "its" and "it's" is not observed in practice, even among these
kids who are t
Just to correct a mistake that I always hate making:
"... for use after _its_ application ..."
Sorry for the noise,
Louis
> On 21 Nov 2019, at 03:49, Louis de Forcrand wrote:
>
> (a,a=.?@#) is a verb, namely (?@# , ?@#). In this expression a is set to the
> _verb_ ?@# and then train (a,a) is
(a,a=.?@#) is a verb, namely (?@# , ?@#). In this expression a is set to the
_verb_ ?@# and then train (a,a) is evaluated.
In the second case a is set to the _result_ of ?@# and then (a,a) is evaluated.
To do this tacitly:
(] , ]) @ (?@#)
or more concisely
,~@?@#
or equivalently (how I would
Re your first question:
(a,a=.?@#)
a , ?@#
a
?@#
You have created a fork. a is equal to a, but it contains ?, and ?y is
not equal to ?y.
Henry Rich
On 11/20/2019 9:29 PM, bill lam wrote:
But it gives trash instead of raising a domain error.
Wed, 20 Nov 2019, Henry Rich написал(а):
It's not trash. It follows the parsing rules.
Henry Rich
On 11/20/2019 9:29 PM, bill lam wrote:
But it gives trash instead of raising a domain error.
Wed, 20 Nov 2019, Henry Rich написал(а):
Tacit verbs are functional. No assignments of results are allowed.
Henry Rich
On 11/20/2019 9:26 P
But it gives trash instead of raising a domain error.
Wed, 20 Nov 2019, Henry Rich написал(а):
> Tacit verbs are functional. No assignments of results are allowed.
>
> Henry Rich
>
> On 11/20/2019 9:26 PM, Nimp O wrote:
> > Hello, simple question.
> >
> > This behaviour surprised me.
> >
> >
Tacit verbs are functional. No assignments of results are allowed.
Henry Rich
On 11/20/2019 9:26 PM, Nimp O wrote:
Hello, simple question.
This behaviour surprised me.
(a,a=.?@#)'01234'
2 4
3 : 'a,a=.?@#y' '01234'
1 1
Why a is not equal to a in the first case? How can I save the ro
Hello, simple question.
This behaviour surprised me.
(a,a=.?@#)'01234'
2 4
3 : 'a,a=.?@#y' '01234'
1 1
Why a is not equal to a in the first case? How can I save the roll as an
intermediate result in the tacit version?
Thanks.
--
Use (+ i.)&.>
> on unboxed values is like ]"0
If you are trying to create selectors for an array use ];.0
Henry Rich
On 11/20/2019 7:35 PM, Jimmy Gauvin wrote:
Hi,
I have intervals of varying length and I want to add a different constant
to each of them.
Is there a better way than the follo
Hi,
I have intervals of varying length and I want to add a different constant
to each of them.
Is there a better way than the following to achieve this :
(<"0 , 10 20 30) +&.> <@i."0 (3 2 4)
┌┬─┬───┐
│10 11 12│20 21│30 31 32 33│
└┴─┴───┘
Thanks
--
You need to upgrade your beta. (Not for this problem, which has been
around for years. We just need testing on all the new changes).
Fixed for next release.
Henry Rich
On 11/20/2019 12:42 PM, 'Pascal Jasmin' via Programming wrote:
(,2),!._ i.0 2
4611686018427387904 9218868437227405312
Thanks, I made the change.
Chris
On Wed, Nov 20, 2019 at 11:15 AM Mario C wrote:
> I think there is a mistake in verb cubicspline (spline addon) for intervals
> different than 1.0.
>
> If you try an interval of 0.1:
>
> load 'math/misc/spline plot numeric'
> x=. 1.1 1.2 1.3 1.4 1.5
> y=. 351.6
I think there is a mistake in verb cubicspline (spline addon) for intervals
different than 1.0.
If you try an interval of 0.1:
load 'math/misc/spline plot numeric'
x=. 1.1 1.2 1.3 1.4 1.5
y=. 351.6 351.6 354.6 371.0 387.7
csp=. cubicspline x,:y
plot csp interspline range 1.1 1.5 0.02
you see the
A table in a column oriented database system has one key for each column.
If keys on each row/record are actually unique, then you don't have a
table, you have a collection of unrelated rows (though, in practice,
you might synthesize something that behaves like a table by repeating
the same keys i
(,2),!._ i.0 2
4611686018427387904 9218868437227405312
(,2), i.0 2
2 0
(,2),!.0 i.0 2
2 0
JVERSION
Engine: j901/j64avx2/windows
Beta-k: commercial/2019-09-16T17:16:41
Library: 9.01.09
Qt IDE: 1.8.3/5.12.3
Platform: Win 64
A column oriented database system or table such as in jd has each field stored
as a list, and independently of each other.
A common conceptualization of a database table is a 2d structure with fields
and records. Keys on a table (or dictionary) are unique to each record/row
A dictionary is just
On Tue, Nov 19, 2019 at 8:00 PM 'Rob Hodgkinson' via Programming
wrote:
> The overhead associated with the multi key indexing you describe
> below is impractical for low latency matching, and avoided by
> managing a free space list for bucket re-use.
Why do you say that? (How big of a dataset doe
This might be better on the chat forum, but:
(1) "table" -- we've got lots of existing uses of that term. For
example: https://www.jsoftware.com/help/dictionary/samp07.htm
Specifying a table as "just a dictionary with ..." could conflict
with those uses (existing tables have rank and shape. But
Here are the goals I have for a dictionary class.
A table is just a dictionary with (potentially multiple) key(s) and multiple
values. A dictionary is a table with just one key and 1 value.
Underlying storage should be at the most performant data type: If all keys or
value (columns) are of the
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