I have twenty five unique 20×30 variables. They are named u1, u2, u3, … u25. I would like to calculate the mean of the i'th entry in each and place it in the i'th entry of a variable u_mean, also 20×30. For example, I want to take the mean of the 33rd (arbitrary number) entry of each variable (mean of 25 numbers, one from each variable) and make that mean the 33rd entry in u_mean.
I am assuming that it is possible/applicable to use linear indexing to reference the 600 values opposed to row,column.
I have tried nesting a for loop within another for loop to vary both the variable name and entry number, but was unable to come up with a solution.
Thank you in advance.
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