class probability distribution, ROC data
by Hans van Rijnberk , Assort Vision, Utrecht
I am only beginning to use Weka, using the GUI. I have two simple questions:
How can I obtain individual class probablities for the instances of a
(train/test/validation) set. I want to use them to assemble a ROC graph with
performance statistics after classification with logistic regression (in
combination with Adaboost).
Is this possible? If so, how?
When using the experimenter: How and where can I indicate what the class
indicator is when this is not the default (last) data field for instances?
Many thanks in advance ...
Hans van Rijnberk
(machine vision software & information services)
3524 KM Utrecht, the Netherlands
tel 031 30 2889531