I have a two vectors csv.
1 - continuous scores between 0 to 1. (Numerical)
2 - Yes/No (Nominal).

I would like WEKA to predict Yes/No according to a threshold I would set for the values in column 1.
Meaning, if the score in column 1 is higher than the threshold that I will give, than the prediction of WEKA should be 1. else 0.

The reason is that I want to see its ROC curve and the AUC.

What classifier should I use and how can I set the threshold?

Thank you,