I stumbled onto this by accident, but I can't find it documented anywhere.
{i.3 4 5
┌──┬──┬──┬──┐
│0 1 2 3 4 │5 6 7 8 9 │10 11 12 13 14│15 16 17 18 19│
├──┼──┼──┼──┤
│20 21 22 23 24│25 26 27 28 29│3
I'm having trouble with editing a "wikitable" because certain characters do
not appear.
Is there a reference for editing, especially the "wikitable"?
In the first example the characters `n&|` do not appear even the characters
`_n&|` DO.
{| class="wikitable"
|-
| n&|. and _n&|.
| (shift n left/ s
Stile "|" is a special character so it has to be specified by number, i.e.
a. i. '|'
124
So,
{| class="wikitable"
|-
| n&|. and _n&|.
| (shift n left/ shift n right)
|}
On Sun, Jul 22, 2018 at 2:56 PM Brian Schott wrote:
> I'm having trouble with editing a "wikitable" because certain chara
Question on a stylistic issue: I'm editing chapter 33 ("Perming and
Combing") where "ptof" is used without first being defined. I can find its
definition in the "code" section so it's not too much of a problem but it
does mean that my initial copy and paste into a J session got a value error.
Sho
I think for catalog to do anything interesting, you need to provide it with
boxed arguments.
So,
{ i.3
+-+
|0 1 2|
+-+
But
{ (i.3);i. 2
+---+---+
|0 0|0 1|
+---+---+
|1 0|1 1|
+---+---+
|2 0|2 1|
+---+---+
It's providing all combinations of the items in boxes but, if there is no
e
As I read Ye Dic, ({ i. 2 4) should give the same result as
({ <"1 i. 2 3). Put it on the bug list.
Henry Rich
On 7/22/2018 4:55 PM, Devon McCormick wrote:
I think for catalog to do anything interesting, you need to provide it with
boxed arguments.
So,
{ i.3
+-+
|0 1 2|
+-+
But
When I run the example "|:rlist 4" from chapter 33 "Perming and Combing", I
get two different results from what is shown in the text in v. 8.04 and v.
8.07; both differ from the text result which is:
2 3 3 2 0 0 3 2 0 0 2 3 0 0 2 3 3 2 1 1 1 1 1 1
3 2 0 0 2 3 0 0 2 3 3 2 1 1 1 1 1 1 2 3 3 2 0 0
0
What's rlist?
Henry Rich
On 7/22/2018 5:14 PM, Devon McCormick wrote:
When I run the example "|:rlist 4" from chapter 33 "Perming and Combing", I
get two different results from what is shown in the text in v. 8.04 and v.
8.07; both differ from the text result which is:
2 3 3 2 0 0 3 2 0 0 2 3
rlist=: TPlist { ?@! { Llist
TPlist=: 3 : 0
if.y>1 do.
r=: ,/(i.y)|."1 every<(TPlist<:y),.<:y
else. r=: 1 $0 end.
)
Llist=: i.@! A. i.
Where "every" is "&>".
On Sun, Jul 22, 2018 at 5:18 PM Henry Rich wrote:
> What's rlist?
>
> Henry Rich
>
> On 7/22/2018 5:14 PM, Devon McCormick wr
I had a similar omission and just inserted its definition in the text
before it was used.
Also, I defined a 3 by 3 array z using ]z=:3 3&$ (when z was just displayed
in the original text).
I hope that is acceptable.
On Sun, Jul 22, 2018 at 4:35 PM, Devon McCormick wrote:
> Question on a stylisti
The two versions should give the same results. Can you isolate a single
primitive that shows a difference between the versions?
Henry Rich
On 7/22/2018 5:21 PM, Devon McCormick wrote:
rlist=: TPlist { ?@! { Llist
TPlist=: 3 : 0
if.y>1 do.
r=: ,/(i.y)|."1 every<(TPlist<:y),.<:y
else
Devon,
rlist uses ? which produces different random values.
I think ?. may produce identical random values in different Js.
On Sun, Jul 22, 2018 at 5:21 PM, Devon McCormick wrote:
>rlist=: TPlist { ?@! { Llist
>TPlist=: 3 : 0
> if.y>1 do.
> r=: ,/(i.y)|."1 every<(TPlist<:y),.<:y
> else
> I stumbled onto this by accident, but I can't find it documented anywhere.
>
> {i.3 4 5
You obviously know what i. does.
For the definition of { , in Jqt put the cursor on it (immediately to the
left or right as long as the selection is not ambiguous), then press
Ctrl+F1 or Ctrl+Shift+F1 for th
A good starting point on the J wiki is https://code.jsoftware.com/wiki/About
.
This in turn points to the Wiki syntax page. A useful tag described there
is , which is used quite a bit in the J wiki. Using allows
us to include J code without it being treated as wiki markup. See
https://en.wikipedi
Henry Rich wrote:
> As I read Ye Dic, ({ i. 2 4) should give the same result as
> ({ <"1 i. 2 3).
I never thought I'd have to say this to *you* but:
note that Catalogue { has rank 1.
Hence there should not be any interaction between the colors in
{ 'black' ,: 'green'
nor in the low / high ve
Yes. The documentation describes exactly what's happening. The rank 1 is
the key making each number an item. In this case it is the equivalent to
(<"1) by itself. So, is it a good idea to use ({) in place of (<"1) when
wanting to box something rank 1? It's shorter and simpler to read. But what
abou
oops.
Henry Rich
On 7/22/2018 6:42 PM, [email protected] wrote:
Henry Rich wrote:
As I read Ye Dic, ({ i. 2 4) should give the same result as
({ <"1 i. 2 3).
I never thought I'd have to say this to *you* but:
note that Catalogue { has rank 1.
Hence there should not be any interaction betwe
I'll get the answer to this one right. <"r is heavily optimized. Don't
try to replace it.
Henry Rich
On 7/22/2018 7:08 PM, Don Guinn wrote:
Yes. The documentation describes exactly what's happening. The rank 1 is
the key making each number an item. In this case it is the equivalent to
(<"1)
Sounds good.
On Sun, Jul 22, 2018, 5:46 PM Henry Rich wrote:
> I'll get the answer to this one right. <"r is heavily optimized. Don't
> try to replace it.
>
> Henry Rich
>
> On 7/22/2018 7:08 PM, Don Guinn wrote:
> > Yes. The documentation describes exactly what's happening. The rank 1 is
> >
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