title: What is the structure of torch dataset?
body: <p>I am beginning to use torch 7 and I want to make my dataset for classification. I've already made pixel images and corresponding labels. However, I do not know how to feed those data to the torch. I read some codes from others and found out that they are using the dataset whose extension is '.t7' and I think it is a tensor type. Is it right? And I wonder how I can convert my pixel images(actually, I made them with Matlab by using MNIST dataset) into t7 extension compatible to the torch. There must be structure of dataset in the t7 format but I cannot find it (also for the labels too). </p>
  
  <p>To sum up, I have pixel images and labels and want to convert those to t7 format compatible to the torch. </p>
  
  <p>Thanks in advance!</p>