take a Neural Network and create a new NN that gives the gradient.

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Robert Alvarez on 26 Mar 2017

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https://nl.mathworks.com/matlabcentral/answers/332044-take-a-neural-network-and-create-a-new-nn-that-gives-the-gradient

Commented: Alejandro Rivera on 2 Jan 2021

I found this function on the file exchange that does what I want but it is no longer compatible with the neural network toolbox functions. FEX function

Ideas on how to get the gradient or make the FEX function compatible with recent toolbox functions?

BTW, I do not want staticderiv, which computes the gradient of performance with respect to the network's weights and biases. I want the gradient of the output wrt to the input of the neural net.