How to extract diagonal elements of multiple nxn square matrix and place them in single mat file or matrix?
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I have 500 mat files with 10x10 double dimension. I want to extract the 10 diagonal elements from each matrix and place them in a single matrix which will be 500x10 (500 rows and 10 columns) each row consists of diagonal elements of one matrix. How can I make a single variable with all the diagonal elements?
ytzhak goussha on 27 Sep 2018
Hope this helps
step1:creat a nXnXm with random elements for the example:
%set dimensions of matrix
step2: initialize an output matrix with nXm dimensions
step3: extract a diagonal from each matrix and place them in the output matrix
Alternatively, though not recommended, you can simply concatenate:
%initialize an empty matrix