I'm not very good at matlab and trying incorporate the above formula. I'm trying to do part (2) and (3) first, to get them more easily in the complete formula.
I am struggling with (3): Y is in my case a 101x14 matrix and I think the mean should then be one number. I can obviously take the mean of the columns and rows seperately, yielding a 101x1 and a 14x1 vector, but these are obvousily not compatible for matrix multiplication.
Any advice on how to make this work better?
Additionally, am I correct doing the following instead of symsum?
M = 1;
N = 14;
T = 101;
for n = 1:N
for t = 1:T
R2 = ...
Many thanks in advance!