actually, no. Rank 0 verbs try to match their nouns across the first dimensions of those nouns.
So, for example: A=: (5#2)#:i.5 B=: (5#2)#:i.2 5 $A 5 5 $B 2 5 5 A=B |length error | A =B A="2 B 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 0 1 1 0 0 0 1 1 0 1 0 1 0 1 0 0 1 0 0 1 0 (The first table in B is identical to A, and the second one is different. Using A="2 B you can see where they are same and where they are different. If you want to compare those tables as a whole, you'd want A-:"2 B) I hope this helps, -- Raul On Wed, Feb 28, 2018 at 6:37 AM, bill lam <[email protected]> wrote: > I suspect ="2 and *."2 are the same as that without rank conjunction > because = and *. are rank 0 > > On Feb 28, 2018 2:18 PM, "Nick S" <[email protected]> wrote: > > Someone please tell me if I understand this: > > If I have a list of 5x5 tables, that is, a thing with a shape of n 5 5 > where n is anything from 1 to 30, That is, the shape of the table might be > (5 5 or 2 5 5 or 3 5 5 etc.) and I want to compare it against a single 5x5 > thing in 5x5 groups, the proper rank to use for the comparison is 2, as > > a ="2 b or a -:"2 b or a *."2 b > > depending on what I want to do. > > When I use a rank 2, does it take the last two dimensions of whatever and > use those? The examples I see are all for the more common cases of taking > a table and processing it by individual items, rows or columns. My > experimentation seems to indicate that my guess is true, but I am so damned > confused at this point, I need to see if I am on the right track. > > -- > Of course I can ride in the carpool lane, officer. Jesus is my constant > companion. > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
