Forecasting Trouble Due to Missing Values

[fcscunha]

Hi,
I estimated several different models using y(L) and x(L) from 1994m08 to 2008m03, as below:

yt = c + S yt(L) +S xt(L)

where S yt(L) is the polynomial distributed lag, varying from 1 to 11
S xt(L) is the polynomial distributed lag, varying from 0 to 11

i am trying to do forecasts from 2008m04 to 2009m03 of each model but when i call it, the program returns the message "Unable to compute due to missing data in DO_EQ1.FORCAST YF_EQ1"

i changed the sample as "smpl 2008m04 2009m03" and then called the forecasts. How can i resolve this problem?

Thanks for help

PS: i did not use the function PDL. I constructed the models using strings.

[fcscunha]

I forgot to say that i don't have missing values in my range.

[EViews Gareth]

The most likely cause is that you do, in fact, have missing data over the forecast period. Best thing to do is post your workfile so we can take a look.