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Re: Efficient comparison of arrays [message #9773 is a reply to message #9685]

Tue, 12 August 1997 00:00

Struan Gray
Messages: 178
Registered: December 1995

Senior Member

One way to take advantage of IDL's built in functions when
comparing arrays is to use the REVERSE_INDICES keyword in a call to
HISTOGRAM. For general problems the methods already posted will
probably save you time and memory but if you have a restricted data
range or if you are comparing a small set of important values with a
large array a cleverly constructed set of histogram bins can save you
a lot of looping.

Struan

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[Message index]

		Re: Efficient comparison of arrays By: wonko on Mon, 11 August 1997 00:00
		Re: Efficient comparison of arrays By: David P. Steele on Mon, 11 August 1997 00:00
		Re: Efficient comparison of arrays By: Struan Gray on Tue, 12 August 1997 00:00
		Re: Efficient comparison of arrays By: J.D. Smith on Mon, 11 August 1997 00:00
		Re: Efficient comparison of arrays By: Marty Ryba on Mon, 11 August 1997 00:00
		Re: Efficient comparison of arrays By: davidf on Sun, 10 August 1997 00:00
		Re: Efficient comparison of arrays By: David R. Klassen on Sun, 10 August 1997 00:00

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