\HeaderA{spec.taper}{Taper a Time Series by a Cosine Bell}{spec.taper}
\keyword{ts}{spec.taper}
\begin{Description}\relax
Apply a cosine-bell taper to a time series.
\end{Description}
\begin{Usage}
\begin{verbatim}
spec.taper(x, p = 0.1)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{x}] A univariate or multivariate time series
\item[\code{p}] The proportion to be tapered at each end of the series,
either a scalar (giving the proportion for all series)
or a vector of the length of the number of series (giving the
proportion for each series..
\end{ldescription}
\end{Arguments}
\begin{Details}\relax
The cosine-bell taper is applied to the first and last \code{p[i]}
observations of time series \code{x[, i]}.
\end{Details}
\begin{Value}
A new time series object.
\end{Value}
\begin{SeeAlso}\relax
\code{\LinkA{spec.pgram}{spec.pgram}}, \code{\LinkA{cpgram}{cpgram}}
\end{SeeAlso}

