Making space panel model with Matlab. What if the log-likelihood is NAN?

It should be because the environment variable is not set:

Right-click My Computer-Properties-Advanced-Environment Variable;

View path variables in the system variable options area;

Put c: \ python27; After adding, remember to separate them with semicolons;

C:\Python27 is the installation directory of my Python;

If it still doesn't work, I suggest:

If the installation package is found, it is recommended to repair it;

Check the code to see if there is a problem.