Replacement for Figure 1 in Clancy EA and Hogan N.
"Probability Density of the Surface Electromyogram and Its Relation to
Amplitude Detectors," IEEE Transactions on Biomedical Engineering,
Vol. 46, No. 6, pp. 730–739, 1999.
Fig. 1. Normalized composite probability density estimates for Experiment
One. Experimental density (dark solid line) is the average of 660
recordings. Error bars indicate one standard deviation above and
below the average. Data were recorded from biceps and triceps muscles
during constant-force, constant-angle, nonfatiguing contractions.
Line marked with "+" indicates the Laplacian density and line marked with
"o" indicates the Gaussian density.