Extract values and multilpicities from list
- To: mathgroup at smc.vnet.net
- Subject: [mg64849] Extract values and multilpicities from list
- From: "Dr. Wolfgang Hintze" <weh at snafu.de>
- Date: Sun, 5 Mar 2006 03:19:20 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Given a list of integers which may repeat, e.g.
lstIn = {2,3,4,4,2,1,1,5,4}
provide a list of different values and their respective multiplicities,
in the example,
LstOut= {{1,2},{2,2},{3,1},{4,3},{5,1}}
Who finds the shortest function doing this task in general?
Thanks.
Best regards,
Wolfgang
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