Maybe some friends are not familiar with how to use Stata to check duplicate data? Then the editor will explain to you how to use Stata to check duplicate data. Friends who are not familiar with it should come and take a look. I hope it can help you.

First, open the Stata software on your computer.

For this demonstration, we use the sample data provided by Stata. As shown in the figure, enter the following command to open the car transaction data in 1978.

Let’s start with duplicate value detection. Type the command [Duplicates in terms of mpg] to quickly detect duplicates in the variable [mpg].

Continue to enter the following command [duplicates list mpg] to list all duplicates in the variable [mpg] in detail.

If we need to delete duplicate values ​​in a variable, we only need to enter the following command [duplicates drop mpg]. This way, duplicate values ​​can be removed and the first record with duplicate values ​​retained.

The above is the editor's explanation of how to use Stata to check duplicate data. Friends in need can take a look.