It looks like this is happening because the array values output by the sample function of the model is converging to -inf. Samples in the Scala version start at about 12.9 and trend positive, while samples in the Python version start at -0.62 and trend negative. If I plug the Scala sampled data into the Python test, the unit test succeeds.
filing bug to follow up on known issue in Python unit tests
In
test_ARIMA.py
, thetest_remodel_sample_data
unit test case fails with the following exception:It looks like this is happening because the array values output by the
sample
function of the model is converging to -inf. Samples in the Scala version start at about 12.9 and trend positive, while samples in the Python version start at -0.62 and trend negative. If I plug the Scala sampled data into the Python test, the unit test succeeds.