It is rare for a scientific paper to include real data, but the data can often be read from a chart or graph included as a figure. That's where this software comes in handy. I have used it many times to "reverse engineer" a graph, and back out the data that were used to construct it.

Indispensable software, if you are trying to get the original data behind a chart. Works very well (especially compared to the alternatives - guessing, measuring by hand, etc.). Give it a try - you'll learn to appreciate it when you need it the most ;-)

Well designed, very mac-like.