How do use the newgrnn function for 5 featured data?

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Soumith Reddy
Soumith Reddy 2017-3-20
评论： Soumith Reddy 2017-3-22
when i was using this newgrnn function matlab was showing an error.. inputs is a matrix of dimensions 2000x5 and output is a matrix of dimensions 2000x1.. this was the error which i got.. anyone please help.. thanks
>> net=newgrnn(inputs_train,AQI_train)
Error using network/subsasgn>network_subsasgn (line 528)
net.IW{1,1} must be a 1-by-2000 matrix.
Error in network/subsasgn (line 13) net = network_subsasgn(net,subscripts,v,netname);
Error in newgrnn>create_network (line 123) net.iw{1,1} = p';
Error in newgrnn (line 67) net = create_network(param); end

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回答（1 个）

Greg Heath
Greg Heath 2017-3-20
In most NN Toolbox functions: For N pairs of I-dimensional "I"nputs and corresponding O-dimensional "O"utput targets
[ I N ] = size(input)
and
[ O N ] = size(target)
Hope this helps
Thank you for formally accepting my answer
Greg
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Greg Heath
Greg Heath 2017-3-22
Exactly as shown in the documentation
help newgrnn
and
doc newgrnn
Hope this helps.
Greg
Soumith Reddy
Soumith Reddy 2017-3-22
Thanks for the reply Greg. In the documentation it is said that net=newgrnn(x,y,spread) where x(input) is a AxN matrix and y(target) is a BxN matrix. when the network is trained we can simulate the network using a= sim(net,input); when i do this the prediction by matlab is not matching with the training data itself. Please help me.

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