Hi,

I am trying to use Sankey to visually describe longitudinal patterns/flow in Stata 17. (I have Python 3.9 installed.) I tried to test with the example dataset and codes provided in help, but returned with an error message as below. Could you please provide some guidance? Thanks!


. use https://www.mjcrowther.co.uk/data/sankey_eg1

. sankey start stop freq
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'numpy'
(30 lines skipped)
(error occurred while loading sankey.ado)
r(7102);



Best,

Vivien Chen