MATLAB: Doesn’t the matlab have deepNetworkQuantizer app？

deep learningDeep Learning Toolboxquantization of deep neural networks

Why is there nothing about the quantification of the deeplearning model? But I see the official website has a lot of content in this regard, such as these：
Quantization of Deep Neural Networks
dlquantizer
calibrate
My matlab version is R2020a, win10，When I enter "deepNetworkQuantizer" in the "command window",it errors,
Unrecognized function or variable 'deepNetworkQuantizer'. ??? why
Matlab R2020a DeepLearningToolbox releasenotes does't show new quantitative features?
As you can see below, Deep Learning Toolbox has been installed.

Best Answer

My guess is that you haven't installed the support packages listed on the first documentation page to which you linked.
"Quantization of a neural network requires a GPU, the GPU Coder™ Interface for Deep Learning Libraries support package, and the Deep Learning Toolbox Model Quantization Library support package. Using a GPU requires a CUDA® enabled NVIDIA® GPU with compute capability 6.1 or higher."
To obtain the Deep Learning Toolbox Model Quantization Library support package:
  1. Go to the Home tab on the Toolstrip.
  2. In the Environment section click the Add-Ons button (the three colored squares arranged in a triangle.)
  3. Search for "Deep Learning Toolbox Model Quantization Library" in the Add-On Explorer.
  4. Open the result.
  5. Click the Install button on the right side of the window.
If you haven't already installed it you will need to obtain the GPU Coder™ Interface for Deep Learning Libraries support package in the same way. Only step 3, what you search for, is different. [Or since you already have the Add-On Explorer open, start at step 3.]
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