MATLAB: Fixunknows on nftool GUI matlab

Deep Learning ToolboxMATLABneuralnetworknftool

I am using the nftool GUI to set up a regression neural network.
My database has various NaN (missing values). When I run the GUI, everything seems to go right. It gives me the performance and the regression graph.
I read that by line code you can add a processFcn named 'fixunknowns' to the network.
My question is: In the GUI, is the neural network making the fixunknows? How the GUI is procesing this NaN? When I generate the script, the fixunknows function does not appear.
I wonder if it is only possible to treat this NaN values on line code? Or… perhaps the GUI implements the fixnknowns automatically?
Thank you.

Best Answer

I don't know for sure. However, I see no reason why you should not assume that functions called from command line and GUI use the same defaults for both.
Hope this helps.
Thank you for formally accepting my answer