I am at loss in my research project and would appreciate any input, reference to literature, publications, etc. Here it goes:
I have a set of directional data which I know is a combination of two von Mises distributions. I have been able to isolate one contributor through experiments but I cannot measure the other directly. So the only way is measuring the combination.
Unfortunately, I have not been able to find any literature on how I can mathematically solve for a von Mises model of the unknown contributor.
Does anyone know how I can "subtract" one von Mises distribution from another to identify the parameters of the unknown distribution?
Thank you for your help.