# forecast.ets

From forecast v7.3
by Rob Hyndman

##### Forecasting using ETS models

Returns forecasts and other information for univariate ETS models.

- Keywords
- ts

##### Usage

`"forecast"(object, h=ifelse(object$m>1, 2*object$m, 10), level=c(80,95), fan=FALSE, simulate=FALSE, bootstrap=FALSE, npaths=5000, PI=TRUE, lambda=object$lambda, biasadj=FALSE, ...)`

##### Arguments

- object
- An object of class "
`ets`

". Usually the result of a call to`ets`

. - h
- Number of periods for forecasting
- level
- Confidence level for prediction intervals.
- fan
- If TRUE, level is set to seq(51,99,by=3). This is suitable for fan plots.
- simulate
- If TRUE, prediction intervals produced by simulation rather than using analytic formulae.
- bootstrap
- If TRUE, and if
`simulate=TRUE`

, then simulation uses resampled errors rather than normally distributed errors. - npaths
- Number of sample paths used in computing simulated prediction intervals.
- PI
- If TRUE, prediction intervals are produced, otherwise only point forecasts are calculated. If
`PI`

is FALSE, then`level`

,`fan`

,`simulate`

,`bootstrap`

and`npaths`

are all ignored. - lambda
- Box-Cox transformation parameter. Ignored if NULL. Otherwise, forecasts back-transformed via an inverse Box-Cox transformation.
- biasadj
- Use adjusted back-transformed mean for Box-Cox transformations. If TRUE, point forecasts and fitted values are mean forecast. Otherwise, these points can be considered the median of the forecast densities.
- ...
- Other arguments.

##### Value

`forecast`

".The function `summary`

is used to obtain and print a summary of the
results, while the function `plot`

produces a plot of the forecasts and prediction intervals.The generic accessor functions `fitted.values`

and `residuals`

extract useful features of
the value returned by `forecast.ets`

.An object of class `"forecast"`

is a list containing at least the following elements:
is a list containing at least the following elements:##### See Also

##### Examples

```
plot(forecast(fit,h=48))
```

*Documentation reproduced from package forecast, version 7.3, License: GPL (>= 2)*

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