I asked this in the mathematics section, but they told me it was probably best to ask it in a different PF section. So I'm interested in getting a hold of peer-review journal articles' "original data sets". I'm curious because I want to play around with data for fun on some statistics software I'm teaching myself, plus I want to create equations to describe/predict things I find interesting in peer-review journals. I've been looking at peer-review journals for fun since I was in high school. Not that any of us are Isaac Newton, but he was into making equations to describe/predict things. It helped him come up with new hypotheses to test, see patterns between already existing ideas to create broader perspective principles, and to see which ideas may have looked the same but which were extremely different. How often do they let others see their original data sets? Do people just email the authors of a peer-review article to get it from them?