EG: unbalanced panel data regression

NewbieSAS — Mon, 02 Aug 2010 18:34:00 GMT

As a total newbie in SAS, being unfamiliar with the 'real' SAS programming, I decided to use EG to run a linear regression on a unbalanced panel data set (through Task>Time Series> Regression Analysis of Panel data) consisting of about 180.000 rows.

While doing so however, i get error codes on either the time-series or the cross section since there is plenty of missing data:

"ERROR: There is only one cross section or time series observation"

and

"ERROR: Not enough observations with non-missing model variables for model statement in cross section GVKEY=001411"

practically, I assume this means that Cross-section items appearing only once in the dataset should be deleted, right? How can I best approach this problem taking into account my lack of programming skills?

Thanks in advance,

Robert

Re: EG: unbalanced panel data regression

TWOSU — Sat, 26 Mar 2016 22:44:39 GMT

Hi NewbieSAS,

I had the same problem. This is what I did. Open the data set in excel. Select the column with the cross-section ID (in my case it is firm ID number). Use conditional formating icon to highlight all duplicates. Select and delete the non-duplicates. Hope that works.

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EG: unbalanced panel data regression

Re: EG: unbalanced panel data regression