Lesson-rossman.ipynb

Part 1 (2018)
1

Just an observation and a follow-up question

If I do not delete zero sales observations from the train dataset (as the #3 winners did by:

joined = joined[joined.Sales!=0]

), two things happe:

  1. yl = np.log(y) issues a warning about likely division by zero
  2. the m.lr_find() dies without any calculations

Follow-up question:

Has anyone tried to add the zero sales rows back in?

Thanks