plot_results.py: IndexError: index 3 is out of bounds for axis 1 with size 2

[mw66]

$ python plot_results.py SEAQUEST_04-24-05-36_0p00025_0p99/learning.csv

Traceback (most recent call last):
File "plot_results.py", line 22, in
plt.plot(results[:, 0], np.convolve(results[:, 3], kernel, mode='same'), '-')
IndexError: index 3 is out of bounds for axis 1 with size 2

learning.csv.zip