post full traceback in error tags and probably full code that produce the error (minimal reproducible example)
also this code https://www.statsmodels.org/dev/examples...ession.htm does not work
also this code https://www.statsmodels.org/dev/examples...ession.htm does not work
If you can't explain it to a six year old, you don't understand it yourself, Albert Einstein
How to Ask Questions The Smart Way: link and another link
Create MCV example
Debug small programs
How to Ask Questions The Smart Way: link and another link
Create MCV example
Debug small programs