I have a Matrix named June21_Once_StillMat - the size of which is 15 x 41 x 40. I am trying to get the data from the colums 2 to 8 of the matrix une21_Once_StillMat to a new matrix A of size 15 x 8 x 40.
I need to average the values of each row over i (40) from matrix A and populate that data to a new 3D matrix B of size 8 x 8 x 15. The third column of matrix B, B(k,3,j) will have the value obtained from the averaged value and the 4th column of matrix B, B(k,4,j) will be the standard error. I am not being able to figure this out.