QSTK's eventprofiler function doesn't plot properly
问题 Using QSTK for Georgia Tech's Coursera Computational Investing course, the eventprofiler function at the end of Examples/EventProfiler/tutorial.py doesn't output the graph shown in the videos. (See image below.) The other PDFs produced for the exercises for Week 4 are identically empty except for the event numbers, which are correct. Creating PDFs seems like a waste since those numbers could've just been output to terminal. I looked into the error output for index.py:2204 shown on the image