Hi everyone,

I have pooled cross-sectional dataset for 2009,2011,2012,2014 and 2017. I am trying to regress pooled OLS and want to include time trend.

Issues are;
1. the year has gaps.
2. It is combined cross-sectional dataset and hence
Code:
tsset
resulted in repeated time values in the sample.

Is there any way to work around it?

*also, this dataset is not panel so xtset is not appropriate as well.

Thank you in advance!