Dear Raul,

did you check your dataset for missing values by using:

print dataset -o


Am 22. September 2015 11:43:28 MESZ, schrieb Raul Gimeno <>:

I have 20 quarter observations from 1981:1 to 1990:4

When I run an OLS-estimation with three dummy variables yt = ß0 + ß1×t + ß2 ×D2 + ß3 ×D3 + ß4 ×D4 + ut

I get a result with the titel  « Model x : OLS, using observations 1986 :2-1990 :2   (T17). »

It is not clear to me why Gretl takes 17 observations instead of 20 to run the OLS estimation.

Thank you in advance


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