Ric,
e3=: 5 5$ e3
f=.1 2 3 5 8 13 21
(e3 e."1 f)} (5 5$<'. '),:<'@ '
|stack error: e3
| ( e3 e."1 f)}(5 5$<'. '),:<'@ '
;"1 (e3 e."1 f)} (5 5$<'. '),:<'@ '
When does ;"1 apply if there is already a "stack error" without?
Linda
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Ric Sherlock
Sent: Tuesday, December 04, 2012 3:46 AM
To: Programming JForum
Subject: Re: [Jprogramming] Getting more than one value back from "From" or
alternative approach
Linda, you'll find f explained and defined in the original post. It is the
Fibonacci series.
On Tue, Dec 4, 2012 at 9:32 PM, Linda Alvord <[email protected]>wrote:
> Now for this thread.....
>
> Do you pull f out of some strange "hat" somewhere?
>
> Linda
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Ric
> Sherlock
> Sent: Monday, December 03, 2012 10:17 PM
> To: Programming JForum
> Subject: Re: [Jprogramming] Getting more than one value back from
> "From" or alternative approach
>
> Does this provide something similar to what you are wanting?
>
> e3=: 5 5$ e3
> ;"1 (e3 e."1 f)} (5 5$<'. '),:<'@ '
> . @ . . .
> . @ @ . .
> . @ . @ .
> . @ . . .
> . . . . @
>
>
>
> On Tue, Dec 4, 2012 at 3:21 PM, PackRat <[email protected]> wrote:
>
> > I have an application where I have a numeric evolute that I want to
> > visualize. Essentially, I have a list of values within the evolute
> > that I want to display as a given literal character, while the
> > remaining values would be a default "background" literal character.
> >
> > Everything works fine until I get to a point where I need to select
> > values in such a way that I retrieve not only the "anchor"
> > (selected) value from a list of ordered display characters but also
> > one or more (depending on how the ordered list is constructed)
> > succeeding separating characters. "From" seems to be the kind of
> > thing I'd like to do, but that returns only a single value for each
> > element of the lefthand argument. In other words, I know that you
> > can do something
> > like:
> >
> > 0 4 10 18 { array
> >
> > which will return FOUR elements from "array". However, since in my
> > case, each of the elements in "array" is followed (separated) by a
> > space character, what I *want* returned are four PAIRS of characters
> > (the element and its succeeding space): 0-1, 4-5, 10-11, and 18-19.
> >
> > Is there some way to make "From" be able to do this, or can someone
> > suggest another approach? I'm stuck at the moment. Here's a sample
> > evolute of size 5:
> >
> > 13 14 15 16 17
> > 12 3 4 5 18
> > 11 2 1 6 19
> > 10 9 8 7 20
> > 25 24 23 22 21
> >
> > For this example's sake, I decided to "mark" the Fibonacci series
> > (contained in a list):
> >
> > f=. 1 2 3 5 8 13 21
> >
> > After the earlier half of the program does its thing (correctly),
> > the next lines would be (e3 has 25 values):
> >
> > e3=. 12 13 14 15 16 11 2 3 4 17 10 1 0 5 18 9 8 7 6 19 24 23 22
> > 21
> > 20
> >
> > sqdata=. 'X @ @ . @ . . @ . . . . @ . . . . . . . @ . . . . '
> >
> > e4=. (2 * e3) { sqdata NB. this is the problem area
> >
> > e=. (2*5 , 5) $ e4
> >
> > The end result (e) should look like this:
> >
> > @ . . . .
> > . @ . @ .
> > . @ X . .
> > . . @ . .
> > . . . . @
> >
> > The reason I need the spacing characters is because a square doesn't
> > look square on a screen or printer since characters are rectangular
> > in shape (not square). Looking square is important for my application.
> >
> > Thanks in advance for any help solving this!
> >
> >
> > Harvey
> >
> > --------------------------------------------------------------------
> > -- For information about J forums see
> > http://www.jsoftware.com/forums.htm
> >
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