Note that the -:each would have resulted in a length error.
Roger Hui wrote:
In addition to "el" vs. "one", another way
this can happen is a 1-row matrix vs. a list.
$ each would be more informative than # each .
----- Original Message -----
From: "Philip A. Viton" <[EMAIL PROTECTED]>
Date: Wednesday, August 22, 2007 11:51
Subject: [Jprogramming] why are these different?
To: [email protected]
Can someone help me understand why this is going
wrong here? I've been staring at it for half an
hour and can't figure it out. Basically, I need
to understand how to discover what the difference
is between two variables, denoted y and yy. In
the failing application, under debug I see
y n 2$(<5$'year1'),(<4$'year')
I don't think I can get a similar report for the global yy.
Thanks for any suggestions!
------------------- transcript
z
+--------------+
¦wts¦year¦yearl¦
+--------------+
y
+----------+
¦year1¦year¦
+----------+
yy
+----------+
¦yearl¦year¦
+----------+
z i. yy NB.
this works!
2 1
z i. y
NB. this doesn't, for the zero'th element
3 1
NB. at this point I'm trying to test whether y and yy are the same
#each y
+---+
¦5¦4¦
+---+
#each yy
+---+
¦5¦4¦
+---+
3!:0 y
32
3!:0 yy
32
NB. but J thinks they're different
y -: yy
0
y -: each yy
+---+
¦0¦1¦
+---+
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
--
------------------------------------------------------------------------
|\/| Randy A MacDonald | APL: If you can say it, it's done.. (ram)
|/\| ramacd <at> nbnet.nb.ca |
|\ | | The only real problem with APL is that
BSc(Math) UNBF'83 | it is "still ahead of its time."
Sapere Aude | - Morten Kromberg
Natural Born APL'er |
-----------------------------------------------------(INTP)----{ gnat }-
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
