st: Forecasting for regression with differences and lags

[José Luis Chávez Calva <josechc@gmail.com>]

Hi statalisters:


I have the following model:

*************************************************************
foreach name in "maiz" "trigo" "arroz" "azucar" "cafe" ///
"cerdo" "leche"{
      arima D1.lipp`name' DL1.lipp`name' DL1.lpi`name' ///
      DL1.lippgasol L1.lipp`name' L1.lpi`name' ///
      L1.lippgasol, hessian
      predict D1lipp`name', dynamic(m(2011m1))
      }
*************************************************************

I tried to generate a forecasting for 2011, I have "futures" for
lippgasol and lpi`name', but Stata produced the next:

operators for the independent variable L.lippmaiz do not nest
within the dependent variable D.lippmaiz
 dynamic predictions not available


Do you have some suggestions?

Best regards

JL
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