After taking a screenshot and putting into this really cool website that will let you get {x,y} data from plot images[1] (and it's free software). The cheapest

After taking a screenshot and putting into this really cool website that will let you get {x,y} data from plot images[1] (and it's free software). The cheapest headphones they tested were ~$3.95 USD. As an aside, I get really pissed off when researchers don't publish the data they used. It's very frustrating especially when you want to show that you can reproduce earlier results (I've had to use tools like this to include data in plots for my own papers). [1]: http://arohatgi.info/WebPlotDigitizer/ http://arohatgi.info/WebPlotDigitizer/