Hi everyone,
After running
I've got "factor variables not allowed" error.
Could you please help me with this?
Cheers,
After running
Code:
xtset SurveyID_code qic CTDI PracticeScannerID_code PatientWeight Age_year b1.Sex /// i.Contrast kVp ScanLength b2.State b4.PracticeTypeID //// , corr(exchangable)
Could you please help me with this?
Cheers,
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