In neural network, how can I change the sigmoid activation function to a Gaussian one, How to modify the Matlab codes to achieve this?

that is, change this function: a = tansig(n) = 2/(1+exp(-2*n))-1 to a = gauss(n) = exp(-(n.^2))

Answer 1

[Greg Heath]

 net = fitnet;
 net.layers{1}.transferFcn = 'radbas';

Hope this helps.

Thank you for formally accepting my answer

Greg

[Jay Wong]

Thank you

[Jay Wong]

If I want to set this activation function at the hidden layer (only have one hidden layer), do I just need to change the codes to net.layers{2}.transferFcn = 'radbas'

[Jet Yu]

looks type in

net.layers{1}.transferFcn = 'radbas';

would NOT work in R2018a version for bug below

Error using network/subsasgn>network_subsasgn (line 166)
Attempt to assign cell array as a double array.

Error in network/subsasgn (line 14)
net = network_subsasgn(net,subscripts,v,netname);

Even i change as to fix the data type

net.layers(1).transferFcn(1,:) = cellstr('radbas')

error still

Error using network/subsasgn>network_subsasgn (line 166)
Attempt to assign cell array as a double array.

Error in network/subsasgn (line 14)
net = network_subsasgn(net,subscripts,v,netname);

Any way to fix it?

Best