Have the nnd4db command been removed for 2023b

Hi

I have been using the nnd4db from the deep learning toolbox, the main command beeing nnd which opens the neural network design interface, last version I have tested when it worked is 2022b. In Matlab version 2023b these command do not work, I have doublechecked that the deep learning toolbox is installed. According to the requirements I have found (https://se.mathworks.com/matlabcentral/fileexchange/129459-examples-for-building-classic-neural-networks) it should work, I do not find that the command should have changed or been removed. Has the command been removed or changed in this version? How will it be in future version?

[Dyuman Joshi]

Can you link the documentation of the functions nnd4db and nnd?

Are you perhaps looking for nndata?

Answer 1

[Steven Lord]

I believe that command was part of an old demo that was removed from Deep Learning Toolbox in release R2023b.

Looking back at the documentation for release R2023a the only reference I found to it in the toolbox doc was on the Perceptron Neural Networks topic page. The elimination of that reference was the only change I saw at a quick comparison of the version of that page in release R2023a and the current release's version of that page.

I don't know what if anything was introduced to replace that demo file. If it was useful for your workflow, I recommend you contact Technical Support directly using this link and submit an enhancement request for a documented function to fulfill the same role in your workflow as nnd4db used to serve.

[António Ramos Silva]

At the MATLAB command window execute the command (nnd4pr).

If the command is not working, go to the add-on explorer, type (nnd) in the search and install (examples-for-building-classic-neural-networks)

Answer 2

[António Ramos Silva]

I also tried, and the entire nnd library was removed.

These can be reinstalled. just do:

Home tab - Add-Ons - Get Add-Ons

Search for "nnd", and install examples-for-building-classic-neural-networks

Every example should be there. The ones that I use in my classes are.