Low-Level ARIMA function for translating modeltime to forecast
exp_smoothing_stan_fit_impl(
x,
y,
seasonality = 1,
seasonality2 = 1,
seasonality.type = "multiplicative",
error.size.method = "std",
level.method = "HW",
...
)
A dataframe of xreg (exogenous regressors)
A numeric vector of values to fit
Seasonality
Second seasonality
Either "multiplicative" (default) or "generalized". The latter seasonality generalizes additive and multiplicative seasonality types.
Either "std" (monotonically, but slower than proportionally, growing with the series values) or "innov" (proportional to a smoothed abs size of innovations, i.e. surprises)
"HW", "seasAvg", "HW_sAvg"
Additional arguments passed to forecast::Arima
A modeltime model