Thanks, reworded in R-patched (and later).
On Wed, 17 May 2006, [EMAIL PROTECTED] wrote: > Full_Name: Michael Stein > Version: Version 2.1.1 > OS: linux > Submission from: (NULL) (128.135.149.112) > > > The documentation for spec.taper says > > p: The total proportion to be tapered, either a scalar or a > vector of the length of the number of series. > > Details: > > The cosine-bell taper is applied to the first and last 'p[i]/2' > observations of time series 'x[, i]'. > > > However, the program actually applies the taper to the first and last p[i] > observations, so 2 * p is the total proportion to be tapered. > > The documentation for spec.pgram says > > taper: proportion of data to taper. A split cosine bell taper is > applied to this proportion of the data at the beginning and > end of the series. > > The second statement is correct, but this means that the proportion of the > data > > that is tapered is 2 * taper, not taper. This documentation could easily lead > to > users getting twice as much tapering as they think they are getting. > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > > -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
