Re: Counting Runs
- To: mathgroup at smc.vnet.net
- Subject: [mg52018] Re: Counting Runs
- From: Bill Rowe <readnewsciv at earthlink.net>
- Date: Sun, 7 Nov 2004 01:03:46 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
On 11/6/04 at 2:08 AM, drbob at bigfoot.com (DrBob) wrote:
>And the new winner -- for both speed and simplicity -- is:
>brt4[v_List] := Frequencies@Split[v][[All, 1]]
Where is the function Frequencies to be found?
If it is the function found in Statistics`DataManipulation` then that is coded
{Length[#],First[#]}&/@Split[Sort[list]]
Since this the same as one of your other suggestions, how can using this version of Frequencies be faster?
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