filename = 'MerchData.zip'; dataFolder = fullfile(tempdir,'MerchData'); if ~exist(dataFolder,'dir') unzip(filename,tempdir); endoldpath = addpath(fullfile(matlabroot,'examples','nnet','main')); filenameImagesTrain = 'train-images-idx3-ubyte.gz'; filenameLabelsTrain = 'train-labels-idx1-ubyte.gz'; filenameImagesTest = 't10k-images-idx3-ubyte.gz'; filenameLabelsTest = 't10k-labels-idx1-ubyte.gz'; XTrain = processImagesMNIST(filenameImagesTrain); YTrain = processLabelsMNIST(filenameLabelsTrain); XTest = processImagesMNIST(filenameImagesTest); YTest = processLabelsMNIST(filenameLabelsTest);