To perform cross validation in RapidMiner tool using validation operator.
Step 1: Open the RapidMiner tool.
Step 2: In the welcome perspective that opens, select the new icon.
Step 3: Select the repository location and click ok.
Step 4: Import an excel file and retrieve it.
Step 5: In the design perspective, click operators view -> Evaluation -> Validation -> X-Validation.
Step 6: Click on the validation process operator which will lead to the training and testing process.
Step 7: Click operators view -> Modeling -> Classification and Regression -> Bayesian Modeling -> Naïve Bayes and place it in training process.
Step 8: Click Modeling -> Model Application -> Apply Model and Evaluation -> Performance, Measurement ->Performance and place them in testing process and make connections.
Step 9: Connect the ave of the validation operator to the res of the process.
Step 10: Run the process. The result can be viewed in performance vector view.
The cross validation is performed using validation operator of RapidMiner tool.