Hi,
Pascal, I tried to use your method which functions but the values of the
abscissa are not good. When I talked about “value”, I wanted mean the values
of my starting dataset that I have classified into two classes positive and
negative classes, such as this :

Value      Status      TPF       TNF
1000    1               
487             0               
852             1               
927             1               
799             1               
369             0               
…               …       
        
And for each value of my dataset, I want the tpf and tnf. 
With your method, I have an abscissa which has values between 0 and 1.

All the best,
Camille



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Camille Leclerc, Master student
Lab ESE, UMR CNRS 8079
Univ Paris-Sud
Bat 362
F-91405  Orsay Cedex FRANCE
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