Before revision: A measurement of dynamical heterogeneity can be done by calculating time correlation functions like mean squared displacement, the intermediate scattering function, the dynamic structure factor, the Non-Gaussian parameter and four point correlation functions.
After revision: A measurement of dynamical heterogeneity can be done by calculating time correlation functions like mean squared displacement, the intermediate scattering function, the dynamic structure factor, the Non-Gaussian parameter , four point and three time correlation functions.