what is the purpose of each line of this code?
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This is a code for training Neural Network:
function [net]=createff(Iin,Target)
net = newff(Iin, Target, 10, {'logsig' 'logsig'}, 'trainscg');
net.trainParam.perf = 'sse';
net.trainParam.epochs = 500;
net.trainParam.goal = 1e-5;
net.trainParam.lr=0.15;
net.trainParam.mc=0.8;
net = init(net);
net = train(net, Iin, Target);
end
Please help me to understand this code.
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Greg Heath
2013-7-1
1. delete the net = init statement because newff is self-initializing.
2. Before using a code specifying various parameter values that overwrite default values, it is probably worth your while to try using as many defaults as possible. See the examples in
help newff
doc newff
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Matthew Eicholtz
2013-6-29
The first line creates a feed-forward backpropagation network. Type this in the command window to learn more:
help newff
- '10' is the size of the hidden layer
- 'logsig' is log sigmoid transfer function
- 'trainscg' is scaled conjugate gradient backpropagation
- 'sse' is sum of squared errors
- 'epochs' refers to how many times to run through the training and validation sets
- 'goal' is the stopping criterion
- 'lr' is the learning rate
- 'mc' is the momentum constant
The last two lines initialize and train the network.
help init
help train
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