# Package com.numericalmethod.suanshu.stats.timeseries.linear.univariate.arima

• Class Summary
Class Description
ARIMAForecast
Forecast an ARIMA time series using the innovative algorithm.
ARIMAForecast.Forecast
The forecast value and variance.
ARIMAForecastMultiStep
Make a forecast for a time series assuming an ARIMA model using the innovative algorithm.
ARIMAModel
An ARIMA(p, d, q) process, Xt, is such that $(1 - B)^d X_t = Y_t$ where B is the backward or lag operator, d the order of difference, Yt an ARMA(p, q) process, for which $Y_t = \mu + \Sigma \phi_i Y_{t-i} + \Sigma \theta_j \epsilon_{t-j} + \epsilon_t,$
ARIMASim
This class simulates an ARIMA (AutoRegressive Integrated Moving Average) process.
ARIMAXModel
The ARIMAX model (ARIMA model with eXogenous inputs) is a generalization of the ARIMA model by incorporating exogenous variables.