It's the end of a long day, and my brain is turning to mush. I have the
following sample numeric array:
]a=. 3 4 $ i.12
0 1 2 3
4 5 6 7
8 9 10 11
Formula d45 ("Box columns") on the "Special Matrices & Lists" page in
"Phrases":
]a2=. 1 <@|:;.1 |: a OR ]a2=. 1 1 1 1 <@|:;.1 |: a
+-+-+--+--+
|0|1| 2| 3|
|4|5| 6| 7|
|8|9|10|11|
+-+-+--+--+
No matter what I've tried, I can't seem to "box rows", like this:
+---------+
|0 1 2 3|
+---------+
|4 5 6 7|
+---------+
|8 9 10 11|
+---------+
I keep getting the following boxed structure but not the boxing above:
+-------+-------+---------+
|0 1 2 3|4 5 6 7|8 9 10 11|
+-------+-------+---------+
I'm sure it's something quite elementary, but I just can't seem to come
up with it. Thanks in advance for your help!
Harvey
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