Re: irritating little problem
- To: mathgroup at smc.vnet.net
- Subject: [mg32928] Re: [mg32906] irritating little problem
- From: BobHanlon at aol.com
- Date: Wed, 20 Feb 2002 01:26:06 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
In a message dated 2/19/02 3:25:04 AM, micweij at eka.ericsson.se writes:
>I have a simple vector
>and I want to find the position of elements that are equal.
>
>I.e I want to test the vector and find all cases of similar elements.
>
>Brute force is not what I want, it can be a long vector.
>
Select[{#, Position[vec, #]}& /@ Union[vec],
Length[#[[2]]]>1&]
Bob Hanlon
Chantilly, VA USA