st: tsset

["Alexander Nervedi" <alexnerdy@hotmail.com>]

Hi

I have panel data with gaps. After tssfill, full i have a complete data that 
but there are many covariates, some string and some numeric, that become 
complete but are actually not. For example.

egen uid = group(county household)
tsset uid year
tsfill, full


will generate missing values for county and household to fill in the gaps, 
even though uid and year are complete. what is a good way to fill in missing 
observations for variables like county and household ?

thanks

al

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