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Re: Array Comparison [message #49462 is a reply to message #32357]

Wed, 26 July 2006 08:42

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

ChristopherFlorio@gmail.com writes:
> I am looking for a simple comparison tool such with an array of
> consecutive numbers (i.e. [0,1,2,3,4,5,6,7,8,9]) and array of numbers
> included in that array (i.e. [0,5,9]) I can calculate the matrix of
> "left-over" items (i.e [1,2,3,4,6,7,8]). This can be either array of
> integers or strings. Any Suggestions?

You could use my set manipulator. For example, in your A AND NOT(B)
case,

IDL> a = [0,1,2,3,4,5,6,7,8,9]
IDL> b = [0,5,9]
IDL> print, cmset_op(a, 'AND', /NOT2, b)
1 2 3 4 6 7 8
or
IDL> print, cmset_op(a, 'XOR', b)
1 2 3 4 6 7 8

Hope that helps!
Craig

P.S. Please see http://cow.physics.wisc.edu/~craigm/idl/ under "Array/Set"

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@REMOVEcow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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		Array comparison By: Sean Raffuse on Tue, 01 October 2002 15:08
		Re: Array Comparison By: Craig Markwardt on Wed, 26 July 2006 08:42

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