How to structure the Dataset in separate classes??

HI, I have a dataset in which classes (say 100) are put together in folders, each folder belonging to one particular writer, I have to put each class in a folder to separate class folders. for example, If I am doing handwritten numeral classification, for that dataset have ten folders (one folder for one writer) in which he has written numeral 1 to numeral 10 respectively for nine folders. Now I want to process each folder and make a class for each numeral in which first numeral should belong to one writer 2nd to second writer and so on....please help me out...

[Bob Thompson]

A dataset of mixed class types similar to what I think you are asking for is best done with a cell or structure array.

Then again I could be totally wrong about what you're asking for.