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I once worked with someone who was doing performance benchmarking of two systems, and made a duel axis chart with the lines right on top of eachother when in fa
by jdeaton 2y ago
I once worked with someone who was doing performance benchmarking of two systems, and made a duel axis chart with the lines right on top of eachother when in fact one system was like 5x faster than the other. it drove me nuts because I didn't even realize the dual axis at first and thought that they literally had identical performance
- jszymborski 2y agoYah, the moment you see/make a dual-axis line plot, you know you're comparing relative change. The whole point is to effectively normalize for absolute value. So yah, anyone arguing primarily on the basis of absolute value on these plots is likely pulling a fast one.