deep learning matlab toolbox error

Dears, please i took the error msj when i copied and paste the code to the matlab 2013. i copied the code from ( https://www.mathworks.com/help/nnet/examples/training-a-deep-neural-network-for-digit-classification.html )

>> % Load the training data into memory [xTrainImages,tTrain] = digitTrainCellArrayData;

% Display some of the training images clf for i = 1:20 subplot(4,5,i); imshow(xTrainImages{i}); end * Undefined function or variable 'digitTrainCellArrayData'.

Please any one can help me.

Regards,

Answer 1

[John D'Errico]

You have an old MATLAB release, but are using a demo from a new release of MATLAB. I'll lay down 10 to 1 odds that this data (and that demo) did not exist in your release. Of course, such an online bet is worth nothing, but... :)

You need to upgrade your version of MATLAB if you want to do what you are doing.

[misbah khan]

'imageInputLayer' requires Deep Learning Toolbox.

i have this problem how i solve this?