On Tue, 28 Oct 2008, Oliver Bandel wrote:
> Hello,
>
> what are they meaning? It could be something that
> would show a threshhold above which the result is
> indicating different meanings then just random noise.
> But there is no description on the definition of those lines,
> so it means nothing, if it is not clearly defined.
>
> Where can I find a detailed definiton?
>
>
> Ciao,
> Oliver
>
Look at
?plot.acf
for which there is a pointer on the help to acf:
'The generic function plot has a method for objects of class
"acf". '
Note that if you can't guess what the lines are on the acf plot you
don't
know enough about time series to be using an acf plot and had best get a
book on time series and read it. Any standard reference on time series
should explain it, for example Chatfield: The Analysis of Time Series.
David Scott
_________________________________________________________________
David Scott Department of Statistics, Tamaki Campus
The University of Auckland, PB 92019
Auckland 1142, NEW ZEALAND
Phone: +64 9 373 7599 ext 86830 Fax: +64 9 373 7000
Email: d.scott at auckland.ac.nz
Graduate Officer, Department of Statistics
Director of Consulting, Department of Statistics