Re: [igraph] Kendall's tau of two graph ranking list

[MATSUDA, Noriyuki]

Hi:

   Let me withdraw my previous email.
---------------------------
  I guess you mis-specified 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