X = expsmooth(X,Beta,...)
X
[ tseries ] - Input time series.
Beta
[ numeric ] - Exponential factor.
X
[ tseries ] - Exponentially smoothed series.'init='
[ numeric | NaN
] - Add this value before the first observation to initialise the smoothing.
'log='
[ true
| false
] - Logarithmise the data before filtering, de-logarithmise afterwards.