could anyone guide me how to make roc curve from the trained model , i know their is perfcurve function for it but i don't have any score values return by the classifiers. am unable to use this function. so any other way?

if true
  % code
Label: ''
                Description: ''
                ClassLabels: [91x1 double]
                GroundTruth: [23450x1 double]
       NumberOfObservations: 23450
             ControlClasses: [90x1 double]
              TargetClasses: 1
          ValidationCounter: 1
         SampleDistribution: [23450x1 double]
          ErrorDistribution: [23450x1 double]
  SampleDistributionByClass: [91x1 double]
   ErrorDistributionByClass: [91x1 double]
             CountingMatrix: [92x91 double]
                CorrectRate: 0.9986
                  ErrorRate: 0.0014
            LastCorrectRate: 0.9986
              LastErrorRate: 0.0014
           InconclusiveRate: 0
             ClassifiedRate: 1
                Sensitivity: 1
                Specificity: 0.9993
    PositivePredictiveValue: 0.5789
    NegativePredictiveValue: 1
         PositiveLikelihood: 1.4643e+03
         NegativeLikelihood: 0
                 Prevalence: 9.3817e-04
            DiagnosticTable: [2x2 double]

end