Get Unique Number of Observaitons in Stata

We discuss the methods to get unique number of observations in Stata. There are different methods of doing this i.e. codebook, contract, unique, distinct, levelof and a manual method. Each method have its own advantage. 00:00 Introduction to video 1:43 Using codebook command 3:48 Using contract command 6:27 Get the frequency, and percentage of unique observations 7:41 Distinct command in Stata 9:02 Unique Command in Stata 9:32 list of unique values Website: thedatahall.com As an Amazon Associate, I earn from qualifying purchases.