neural network "train" throwing indexing error using example data

I've started having trouble with a neural network fitting code segment that used to work just fine.

The code gives me a large number of nested errors:

Index in position 1 exceeds array bounds (must not exceed 1).

Error in initnw>initialize_layer (line 176)
       range(inputStart(j):inputStop(j),:) =
       temp2((inputStart(j):inputStop(j))-inputStart(j)+1,:);

Error in initnw (line 101)
    out1 = initialize_layer(in1,in2);

Error in initlay>initialize_network (line 155)
      net = feval(initFcn,net,i);

Error in initlay (line 97)
    out1 = initialize_network(in1);

Error in network/init (line 32)
  net = feval(initFcn,net);

Error in network/configure (line 253)
net = init(net);

Error in nntraining.config (line 146)
  net = configure(network(net),X,T);

Error in nntraining.setup>setupPerWorker (line 102)
  [net,X,Xi,Ai,T,EW,Q,TS,err] = nntraining.config(net,X,Xi,Ai,T,EW,configNetEnable);

Error in nntraining.setup (line 77)
  [net,data,tr,err] = setupPerWorker(net,trainFcn,X,Xi,Ai,T,EW,enableConfigure);

Error in network/train (line 335)
[net,data,tr,err] =
nntraining.setup(net,net.trainFcn,X,Xi,Ai,T,EW,enableConfigure,isComposite);

Error in TRACE_NN_Fit (line 122)
                    [Nets.(strcat('Eqn',num2str(Equation))).Atl.(Name),tr] =
                    train(net,P(InAtlInds,:)',Data(InAtlInds,:)');

There's a lot involved up to that point, so rather than give my specific application, I'll note that I get the same error using the Neural Net Fitting Wizard (nftool) with the built-in example data provided in the tool under the name "body fat" or "abalone rings" (the problem seems to happen whenever the input is more than 1 dimension... here's the GUI image):

Any suggestions?

Thanks in advance... had this problem for a year or two now across multiple computers.

Answer 1

[Brendan Carter]

A colleague just pointed out that there is a function name conflict with a sub function several layers down from the cpt_cmap submission. Moving cpt_cmap off the path seemed to resolve the issue.

[Saikat Sengupta]

Hi Brendan,

Thank you for updating your post with an answer. Could you please elaborate a bit on how you solved it ? I am having the same issue, but I cant find cpt_cmap in my installation (which cpt_cmap does not find anything). I dont recall installing a cptcmap package.

thanks in advance,

Saikat Sengupta