# statsmodels.tsa.arima_model.ARIMAResults.forecast¶

method

ARIMAResults.forecast(steps=1, exog=None, alpha=0.05)[source]

Out-of-sample forecasts

Parameters
stepsint

The number of out of sample forecasts from the end of the sample.

exogarray

If the model is an ARIMAX, you must provide out of sample values for the exogenous variables. This should not include the constant.

alphafloat

The confidence intervals for the forecasts are (1 - alpha) %

Returns
forecastarray

Array of out of sample forecasts

stderrarray

Array of the standard error of the forecasts.

conf_intarray

2d array of the confidence interval for the forecast

Notes

Prediction is done in the levels of the original endogenous variable. If you would like prediction of differences in levels use predict.