Comment Error bars (Score 2, Insightful) 264
Where are the error bars?
I had a college teacher in one of the experimental courses who figuratively ran over me and some of my fellow students' reports for plotting graphs of measured quantities without error bars, particularly when there's a "curve fit" on it. The idea is to figure out how close/far from the "expected behavior" are the experimental point. From then on I've always paid attention to it. At least some reference to it in the preprint would be nice. For all we know, those microvolt output voltages could have errors as big as the graph scale.