

    \filetitle{ews}{Exponential smoothing}{tseries/expsmooth}

	\paragraph{Syntax}

\begin{verbatim}
X = expsmooth(X,Beta,...)
\end{verbatim}

\paragraph{Input arguments}

\begin{itemize}
\item
  \texttt{X} {[} tseries {]} - Input time series.
\item
  \texttt{Beta} {[} numeric {]} - Exponential factor.
\end{itemize}

\paragraph{Output arguments}

\begin{itemize}
\itemsep1pt\parskip0pt\parsep0pt
\item
  \texttt{X} {[} tseries {]} - Exponentially smoothed series.
\end{itemize}

\paragraph{Options}

\begin{itemize}
\item
  \texttt{'init='} {[} numeric \textbar{} \emph{\texttt{NaN}} {]} - Add
  this value before the first observation to initialise the smoothing.
\item
  \texttt{'log='} {[} \texttt{true} \textbar{} \emph{\texttt{false}} {]}
  - Logarithmise the data before filtering, de-logarithmise afterwards.
\end{itemize}

\paragraph{Description}

\paragraph{Examples}


