Hi Phil, try
getAnywhere("plot.acf") you can see how the CI is computed there. Cheers Andrew On Wed, Mar 07, 2007 at 02:12:16PM +0000, Gladwin, Philip [CIB-FI] wrote: > Hello, > I was wondering if anybody could help me with this? > > I have plotted an acf function for a time series and am very happy with it. > Now I am interested in calculating for myself the two values for the > confidence > intervals that are plotted on the graph of the acf. > > The confidence intervals do not appear to be returned from the acf function > (is this true?). > > So far I haven't managed to calculate them myself. Can anybody help? > > Phil, > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- Andrew Robinson Department of Mathematics and Statistics Tel: +61-3-8344-9763 University of Melbourne, VIC 3010 Australia Fax: +61-3-8344-4599 http://www.ms.unimelb.edu.au/~andrewpr http://blogs.mbs.edu/fishing-in-the-bay/ ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.