st: Forecast values and get their interval extrapolation forecasts

["Demetriou, Eleftherios" <Eleftherios.Demetrio@techhealth.com>]

Hi,

I regress y on    L(1/22).y   t   tsquare   feb-dec   x_1
Those are time series in monthly.

I would like to obtain a forecast for future y up to 18 periods ahead
with their interval.

Any help with the commands I should use would be much appreciated.

Thank you



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