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Table 2 Path Efficiency Regression. A linear regression was performed relating Path Efficiency to both the controller (“Intact Hand” vs “KNN”) and an interaction between the controller and time in weeks, which was suggested by an ANOVA to be the best linear regression model. This regression shows better performance in Path Efficiency from the “Intact Hand” controller compared to the “KNN” controller, but there was no degradation in performance by either over time, as indicated by the interaction term coefficients

From: Stable, three degree-of-freedom myoelectric prosthetic control via chronic bipolar intramuscular electrodes: a case study

Model

Path Efficiency = (Intercept) + (Cf)Controller + (Cw0/w1)Week

Coefficient Estimate

Std. Error

p

(Intercept)

66.9

2.3

0.001

ControllerCoefficient Cf

0-Intact, 1-KNN

−21.8

2.7

0.001

Controller:Week Cw0 (Intact)

3.4

1.6

0.03

Controller:Week Cw1 (KNN)

0.6

0.2

0.002

  1. Multiple R-squared: 0.196, Adjusted R-squared: 0.193