Some experiments may have attribute files associated with them. The Set Up Attributes dialog of the Project Setup Wizard lets you use these attributes to group experiments into replicate sets. Attribute files usually describe a single experiment, and may contain technical information about the chip, as well as information describing experimental conditions.
Once your project has been set up in ArrayStar, the information imported from attribute files is displayed in the Experiment Attributes section of the Experiment List view.
Note: If you forget to define attributes during this step of project setup, you can also define attributes after project setup is complete.