Build model - view test result - i have no ROC tab

Question

Dear all,
When I build eg. a classification SVM (Lin.Reg, Naive Bayes)) model and view the test results, in that window I have only these tabs: Performance, Performance Matrix, Lift, Profit. I have no Roc tab. Do you know why? Before I used SQL Developer 3.2.09.30_x64 with this problem. Now I use SQL Developer 3.2.20.09.87_x64 with this problem. When I try to tune the SVM algoritm (so not let it automatic), there are only these tabs: Cost, Benefit, Lift, Profit. But not ROC tab :(((
When I use the old Oracle Data Miner software from 2011, version 11.1.0.3.0 (build 11705) connecting to the same database server (using the same account), and I build a classification SVM model, I have ROC curve.
Can anyone help me to solve this misterious problem?
Than you!!!

Answer 1

We don't have "preferred target value" during model building in the new data miner. However, you can use the Transform node to transform your target into 2 classes (preferred target value and others). You then use the output from the Transform node as input source for your model build.
Here is a process to transform your target into 2 classes:
- Create a Transform node
- In Transform node, select the target column, click "Add Transformation" icon on the toolbar
- In the Add Transform dialog, select "Custom" Binning Type, click "Generate Default Bins" button (accept default settings)
- In the "Custom bin values" listbox, remove the non-preferred target values (select the values and click the "Remove Transformation" icon on the toolbar)
- Now, you should have one preferred target value in the "Custom bin values" listbox, click OK to finish
You can now connect the Transform node to a Build node. In the Build node, select the transformed target (it should have the "_BIN" suffix in the name) as the Target for model build.
Hope this help!
Denny