Title: Forecast Step and Test Alignment Issues
Body:
- Hardcoded Forecast Step: The code hardcodes
step = 50 for the forecast length. This limits the flexibility of the script. It's better to make this a configurable parameter, potentially through user input or a command-line argument.
- Fixed Alignment:
fc_pred.index = test[:step].index makes the forecast index alignment brittle. If len(test) is less than step, this will raise an IndexError. The logic assumes that you always want to forecast the first step days of the test set, which might not be what the user intended.
- Implicit Assumption: The assumption that you want to compare the forecast to the beginning of the test set is not explicitly stated. There could be a desire to offset the comparison window.
Recommendation:
- Make
step a configurable parameter.
- Add a check to ensure that
len(test) is greater than or equal to step before attempting the index alignment. If it's not, either reduce step or handle the case appropriately (e.g., issue a warning and use the available test data).
- Consider allowing the user to specify a start index for the comparison within the test data.
Title: Forecast Step and Test Alignment Issues
Body:
step = 50for the forecast length. This limits the flexibility of the script. It's better to make this a configurable parameter, potentially through user input or a command-line argument.fc_pred.index = test[:step].indexmakes the forecast index alignment brittle. Iflen(test)is less thanstep, this will raise an IndexError. The logic assumes that you always want to forecast the firststepdays of the test set, which might not be what the user intended.Recommendation:
stepa configurable parameter.len(test)is greater than or equal tostepbefore attempting the index alignment. If it's not, either reducestepor handle the case appropriately (e.g., issue a warning and use the available test data).