Model Studio: % of test and training in pipeline

[nouramohammad4]

• How do I define the percentage of testing and training in pipeline? in this page

[Madelyn_SAS]

Which product and version are you using? The screen shot is not from Visual Analytics. 

[Stu_SAS]

Hey @nouramohammad4! It looks like you've created a new machine learning pipeline from Visual Analytics. To define partitions, you'll need to have a partition indicator. When you create a new project within Model Studio, you have the option of creating this partition indicator. When you create a new machine learning pipeline through Visual Analytics, you partition it within Visual Analytics. To partition it:

1. In the Data Pane in Visual Analytics, click New Data Item and select Partition.
   
2.  Partition your data into Training, Validation, and Test as you'd like. Optionally give it a random number seed and a unique ID to create deterministic partitions. This will make sure you have the same random sample if the data is reloaded or if you create a new report. For more information about setting a unique row identifier, see this documentation link.
   
3. Add the Partition data item to your model's Partition ID role.
   
4. Create a new pipeline or add to an existing pipeline.
5. You should now see a Partition role automatically added as a variable to your data, usually named something like: va__d__PARTITION<numbers>__ONES. Your pipeline will automatically use this partition.