Hi Todd,
You can find the RMSE between two matrices either row-wise or column wise. I assume that you need the column wise RMSE values. You could do that by using the following command:
rmseCol = rmse(A,B)
You could also find the row wise RMSE values by using:
rmseRow = rmse(A,B,2)
After that you could append the original matrix A after the RMSECol vector to get the desired effect of getting the RMSE values above the original matrix A. You can do it as follows:
RMSE_A = [rmseCol ; A]
You can find more information about the rmse function and its uses here: Root-mean-square error between arrays - MATLAB rmse - MathWorks India
Hope this helps.
Regards,
Avadhoot.
