How can i use Hyperbolic tangent activation function in Neural Network

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DONG JUN KIM
DONG JUN KIM 2021-5-15
评论： DONG JUN KIM 2021-5-27
i want to change activation function from ReLU to tangent Hyperbolic function in Neural Network
now, i'm using this command
net.layers{1}.transferFcn = 'poslin';
but Is there a way to change the layer to the tangent Hyperbolic layer? Thanks

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Aditya Patil
Aditya Patil 2021-5-18
You can create a custom function, and assign it to transerFcn property. The details are mentioned in the Custom Neural Network Helper Functions documentation.
The steps for replicating this workflow are summarized as follows:
  1. Navigate to the folder containing the NN transfer functions (MATLAB\<version>\toolbox\nnet\nnet\nntransfer in Windows)
  2. Copy the file "tansig.m" and the directory "+tansig".
  3. Paste the copied file and directory into your working directory
  4. Modify the name of "tansig.m" and "+tansig" to reflect the new transfer function name, for example "myFcn.m" and "+myFcn".
  5. Modify the code in the relevant files of "+myFcn"to properly calculate the new transfer function and its derivative.
  6. For the layer in the neural network that will use this transfer function, change the "transferFcn" property to 'myFcn'.

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