Matplotlib 3.0 Cookbook

How to do it...

The following code block plots 11 different ways a legend can be specified:

1. Define the figure with its size:

plt.figure(figsize=(15, 10))

2. Plot the first graph with an inline label:

plt.subplot(3,4,1)line, = plt.plot([1, 2, 3], label='Inline label')plt.legend()

3. Plot the second graph with the legend, using the set_label method:

plt.subplot(3,4,2)line, = plt.plot([1, 2, 3])line.set_label('Label via method')plt.legend()

4. Plot the third graph with two lines, and the legend with a list of labels:

plt.subplot(3,4,3)plt.plot([1, 2, 3])plt.plot([3, 2, 1])plt.legend(['Positive Slope', 'Negative Slope'])plt.title('List of Labels')

5. Plot the fourth graph with three lines, and the legend with handles and labels:

plt.subplot(3,4,4) ...