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concatenate by columns [message #72122] Fri, 06 August 2010 15:02
Astro Fest is currently offline  Astro Fest
Messages: 1
Registered: August 2010
Junior Member
Hi all,

Is there a better way to concatenate by columns than converting to
rows, concatenating, and converting back? This is the way I'm doing
it now, which seems really clunky.

For example, say I have:
IDL> a = indgen(2,10) & b = indgen(2,6)
which are placeholders for arrays given by array_indices. I want to
get c as a (2,16) array... and currently I'm doing
IDL> c = transpose([[transpose(a)],[transpose(b)]])

Ick.

--Gray

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