How can I get MSE and normalized MSE both as performance function when fitting Feed forward neural network?

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Avanthi Saumyamala
Avanthi Saumyamala 2018-10-23
评论： Greg Heath 2018-11-5
Im fitting a feedforward neural network with 8 input parameters and 1 output parameter.i want to use MSE and normalized MSE both to measure the performance.

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Greg Heath
Greg Heath 2018-10-26
Divide MSE by the mean variance of the target rows (MSE of the constant output model)
MSEref = mean(var(target',1))
NMSE = mse(target-output)/MSEref
Rsquare = 1 - NMSE
Hope this helps.
Thank you for formally accepting my answer
Greg

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