title: Azure autoML weight columns
body: <p>I am using autoML for training purposes, however my dataset is very imbalanced.
  It is a multiclass task with 5 classes and I want to minimize this effect when training.
  I have verified the documentation and it seems autoML support the creation of a new column with weights.</p>
  <p>My doubts are: What is the range I am supposed to use? At this moment I am using 30, 40, 1.5 and 4 (I imagine weight should be used as multiplier). Can I use them?
  About new dataset, I know this column will not exist anymore, so how can the model understand that?</p>
  <p>Length of each class:</p>
  <p>A: 12730
  B: 181733
  C: 623848
  D: 1056696
  E: 18210</p>