Anyone can rectity the given below error?

%%Wavelet decomposition
s =xlsread('ARIMA_data.xls');
 % Time series to be decomposed
l_s = length(s);
lag=15;
l=l_s;

% [C,L] = wavedec(s,3,'db1');
cA=zeros(l_s/2,10);
cD=zeros(l_s/2,10,10);
D=zeros(l_s,10,10);
A=zeros(l_s,10);

for i=1:10 
    clear input
% i=6;
    [C,L] = wavedec(s,i,'db5'); % Wavelet family; problem specific
    ca=appcoef(C,L,'db5',i);
    pp=size(ca);
    cA(1:pp(1,1),i)=ca;
    clear ca;
    clear pp;
    A(:,i)= wrcoef('a',C,L,'db5',i);
    for j=1:i
         cd=detcoef(C,L,j);
         qq=size(cd);
         cD(1:qq(1,1),i,j)= cd;
         clear cd;
         clear qq;
         D(:,i,j) = wrcoef('d',C,L,'db5',j);
         input(:,j)= D(:,i,j);

%          
    end
input(:,j+1)=A(:,i);
ii=size(input);
input=input(1:(ii(1,1)-lag-1),:);
clear ii;
input=input';
t=s(2+lag:l_s);
t=t';

for h=1:15
for trial=1:5
net = feedforwardnet(h,'trainlm');
net.divideFcn = 'divideblock';  % Divide data randomly
% net.divideMode = 'time';  % Divide up every value
net.inputs{1}.processFcns = {'removeconstantrows'};
net.divideParam.trainRatio = 70/100;
net.divideParam.valRatio = 5/100;
net.divideParam.testRatio = 25/100;
net.layers{1}.transferFcn = 'tansig';
net.layers{2}.transferFcn = 'purelin';
net.performFcn = 'mse';  % Mean squared error
net.trainParam.showWindow = 0;
[tNet,tr] = train(net,input,t);
output = tNet(input);
test_t = t(tr.testInd);
test_output = output(tr.testInd);
net.performFcn = 'mse';
perf=perform(tNet,test_t,test_output);
perfR=corrcoef(test_t,test_output);
arc(h,trial,i)=perf;
arcR(h,trial,i)=perfR(1,2);
end
end
clear input
end

Subscripted assignment dimension mismatch.

Error in WNN_RGMatlab (line 24)
    A(:,i)= wrcoef('a',C,L,'db5',i);

Answer 1

[Walter Roberson]

You can't get that far with that data. Your s is 1633 x 3, and you pass s into wavedec, but wavedec requires that a vector be passed in. You need to extract column 3 from the data and work with that.

With that change, I do not encounter any subscript error.

The final output variables have no obvious meaning, but that is a different matter.