CreditDefaultCopula function not in my Matlab 2016a version, how to get it?

Hello, i would like to use Matlab's 2018 CreditDefaultCopula function to model defaults. How can i get this function in my Matlab 2016a version (no possibility for me to upgrade...)?

thank you!

[John D'Errico]

Simple. Either upgrade MATLAB to a more recent version (apparently not an option), OR write it yourself.

We cannot give you a copy of the function, nor could you use it. You cannot use toolboxes or code from them from a more recent release in a release where the function was not yet written.