Plotting a ROC curve in scikit yields only 3 points

Question

TLDR: scikit\'s roc_curve function is only returning 3 points for a certain dataset. Why could this be, and how do we control how many points to get ba

Answer 1

It's not necessary to get 1 point except (0,0) and (1,1). I'm using mushrooms dataset from kaggle for a binary classification problem. Procuring fpr and tpr from roc_curve, I'm getting 4 more points, though their value is more or less same.

fpr = {0, 0, 0.02290076, 0.0267176, 0.832061, 1}

tpr = {0, 0.0315361, 0.985758, 0.996948, 1, 1}

I'm not sure if we can consider this as 1 point because plotting the curve using this looks like the one shown in question.