Gnuplot Produced by GNUPLOT 5.4 patchlevel 8 0 100 200 300 400 500 600 700 800 900 -0.05 0 0.05 0.1 0.15 Density (a.u.) Relative change (%) Bootstrap distribution Bootstrap distribution Confidence interval Confidence interval Point estimate Point estimate Noise threshold Noise threshold Complex/handwritten: mean