1) I wish to compare the performance of KNN and SVM on ROC chart.
a)For KNN, I obtained a linear line on ROC Chart instead of curved one.From x=0 until x=0.275, y= 0.65 and from x=0.35 until x= 0.95, y = 1.0.
b)For SVM , the ROC curve behave normally . x=0, y=0 and at x=0.95, y=0.98. Which one is the better model of the two?