![Create training, validation, and test data sets in SAS Partition data into training, validation, and testing in SAS](https://blogs.sas.com/content/iml/files/2019/01/partition1.png)
In machine learning and other model building techniques, it is common to partition a large data set into three segments: training, validation, and testing. Training data is used to fit each model. Validation data is a random sample that is used for model selection. These data are used to select