
From:  lan gao 
Subject:  Re: [igraph] Kendall's tau of two graph ranking list 
Date:  Thu, 3 Jul 2008 09:19:07 0500 
Hi:
Let me withdraw my previous email.

I guess you misspecified the function. Use
cor(x, y, method="kendall")
On 2008/07/03, at 6:57, lan gao wrote:Hi, guys,
I have 2 different ranking lists of 1000 vertices of a graph.
Like, L1={1 ,3 ,4, 5 .......}
L2={ 2, 5, 6, 100....}..
The numbers in each ordering list are the labels of the vertices. For example, 4 means the 4th vertex in the graph.
Now I need to calculate the kendall's tau correlation foeffienct of these two ranking lists.
I uses cov(x, y, method="kendall") . But it did not work.
Anybody can give me any idea?
Thanks a ton.
Lani_______________________________________________
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MATSUDA, Noriyuki <Kanji> 松田紀之
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