It appears that some figures the code references is out of sync with the book (the latest electronic version).
figure_6_3() in chapter06/windy_grid_world.py => Example 6.5.
figure_6_4() in chapter06/cliff_walking.py => Example 6.6.
figure_6_6() in chapter06/cliff_walking.py => Figure 6.3.
figure_6_7() in chapter06/maximization_bias => Figure 6.5.
It appears that some figures the code references is out of sync with the book (the latest electronic version).
figure_6_3()
inchapter06/windy_grid_world.py
=> Example 6.5.figure_6_4()
inchapter06/cliff_walking.py
=> Example 6.6.figure_6_6()
inchapter06/cliff_walking.py
=> Figure 6.3.figure_6_7()
inchapter06/maximization_bias
=> Figure 6.5.