>> Srating = [ 7    15    27    35    20    46 ];
>> Nrating = [ 5    36    68    38     4     1 ];
>> ROC = fittingROC1(Srating, Nrating)
r2 = 0.9999
ROC =  1.4936    1.9938    2.4838    1.8308    0.5791   -0.6112   -1.8423

