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array concatenation [message #58503]

Wed, 30 January 2008 07:56

Ryan.
Messages: 77
Registered: March 2006

Member

Hi All,

I'm trying to add a 1x2 array to the end of an Nx2 array to obtain a (N
+1)x2 array using the square bracket concatenation trick, but based on
my limited understanding of it, I can't get it to work. I've looked
at JD's tutorial on David's website but I still don't get it.

Here is an example of what I want to do:
IDL> array = [[1,2,3,4],[1,2,3,4]]
IDL> print, array
1 2 3 4
1 2 3 4

I want to add another pair to the array to get this:
1 2 3 4 5
1 2 3 4 5

I want to execute a command similar to this one but I can't figure out
the correct number of brackets:
array = [[array], [[5,5]]]

Thanks,
Ryan.

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