MATLAB: Fail to insert a dataset into an array.The array keeps showing that the dataset is an undefined function or variable

Question

Hey,

I am trying to insert a default build-in dataset into a feed-forward neural network. I followed the instructions and typed

load simplefit_dataset ;
[NNInputs, NNTargets] = simplefit_dataset ;

into the Command. It used to train and display the neural network window, but now just by inserting the dataset into the array, it keeps showing the error:

??? Undefined function or variable 'simplefit_dataset'.

And if I change "simplefit_dataset" to "[0, 0]" i.e.

[NNInputs NNTargets] = simplefit_dataset ;

or the other way

[NNInputs NNTargets] = [0 0] ;

I get the error:

??? Too many output arguments.

What a trivial yet unprecedented problem which keeps annoying me for hours. Thanks in advance !

Answer 1

We don't know what got loaded. Try this:

s=load('simplefit_dataset.mat') % or whatever the actual filename of the .mat file is.
fields(s) % No semicolon to display fields into command window.

Tell us what you see.

Maybe you want

[NNInputs, NNTargets] = size(simplefit_dataset);

or

NNInputs = simplefit_dataset.NNInputs;
NNTargets =  simplefit_dataset.NNTargets;

I'm not really sure until I see what you loaded and how you plan on using simplefit_dataset, NNInputs and NNTargets.