"Because the general practice of learning D3 in the wild is to take examples and modify them to fit your own data, I wanted to support that in my class." I lik

"Because the general practice of learning D3 in the wild is to take examples and modify them to fit your own data, I wanted to support that in my class." I like this one a lot. When I am teaching data science, I often use data which some errors I do know. I think that we need more of learning on real examples, not polished ones.