Matplotlib 3.0 Cookbook

How it works...

Here is the explanation of how the code works:

• The pd.read_excel() statements read TPR and FPR data for five algorithms (KNN, MLP, SGD, RF, and DT).
• plt.plot([0, 1], [0, 1], 'k--') plots a black dashed line at a 45 degree angle. This is the base performance level (reference line), and an algorithm whose ROC curve is above this line and covers the largest area under it, compared to all other curves, is supposed to be the best-performing algorithm.
• Subsequent plt.plot() statements plot the ROC curve for each of the five chosen algorithms. Each plot statement is drawing a graph on the same axes. You can plot as many graphs as required, before plt.show(), which displays the graph on the screen.
• Parameter labels and colors differentiate ...