Hello! Could I ask you a question about IODMD?

[csq-123]

Dear Nassir,
Hello! My name is James Chen, a Chinese graduate student, and I read your codes about IODMD from github. There are something I don't quite understand. So I want to ask you for some advice.
First of all, Where should input parameters be modified? In addition, this script requires data in the following fashion:(1) 2 folders of name (2.1) steps_yaw and (2.2) steps_yaw_val, that contain the data non processed directly from CFD simulation from SOWFA. I don't understand what's means.Does it mean I should not run the data through SOWFA simulation. In addition, dirName{'/Users/nassircassamo/Documents/MATLAB/Master_Thesis/steps_yaw_20deg_10offset'};%directory for identification data, wake redirection control.Do I store the data in the path above? I can't find this program where to modify input parameters.
Your reply will be greatly appreciated.

    James Chen