You pressed the green Run button to run the code. When you press the green Run button, MATLAB has no way of knowing what the values are for ssgraph, cc, and so on. MATLAB will not go looking in the base workspace or the workspace of the calling function or shared variables to try to hunt down a value for named parameters.
You need to go down to the command line and pass in values explicitly, or you need to write code that makes the right call inside the code. See https://www.mathworks.com/matlabcentral/answers/898532-can-someone-help-me-with-this-error-message#comment_1688877 for an example.
