weighted averages of temperature and velocities in a cell of molecules

[SriMat]

Hi All,

I am currently doing a simulation of Couette flow(coding using Matlab) and require to find the weighted averages of temperatures and velocities of the molecules in the flow,that has been divided into cells of equal sizes.
i am not really sure how to go about this problem.Could please anyone help me.

Thanks in advance,

Bye.