[R] help in calculating ar on ranked vector

Uwe Ligges ligges at statistik.tu-dortmund.de
Fri Jan 14 18:42:19 CET 2011

Works for my examples. But you have not specified what you actual call 
to ar() was.

Uwe Ligges

On 12.01.2011 21:17, Raymond Wong wrote:
> I was using ar(stats) to calculate autoregressive coefficient. It works on vector z, but it will not work on vector rz<-rank (z, ties.method="average").  What did I miss?
> Any info will be greatly appreciated.  TIA
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