How to Identify Duplicates

This article describes how to create a new variable which identifies the cases in a data set which have duplicated values in one or more variables. This feature is useful when you want to identify cases to delete from the data set.

Requirements

• A data set loaded into a Displayr document.

Method

1. Select one or more variables in the Data Sets tree.
2. Click the variable hover button to the right of the variable and then select Ready-Made New Variables > Duplicates
   A new variable called Duplicates will be added to the Data Sets tree.
3. Drag the variable Duplicates onto the page.
   The results are as follows:
   

Next

How to Remove Duplicate Cases From a Data Set

How to De-duplicate Raw Data Using R