Dear Isayiyas: Thanks for pointing out this issue. The actual encoding for ordered_labels or ordered_categories is a 1x10 vector, not a 10x10 matrix. I use the term “one-hot encoding” here because it seems to be a common term in such a case. Please check the following link for reference.
Maybe “k-hot encoding” or “multi-label binarizer” are better terms for it.
Frank
