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. Author manuscript; available in PMC: 2014 Nov 17.
Published in final edited form as: IEEE Trans Biomed Eng. 2011 Nov 29;59(3):645–652. doi: 10.1109/TBME.2011.2177662

Fig. 5.

Fig. 5

Effect of the number of recording channels on classification error. Every combination of channels was tested and the best subset was chosen for each discrete number of channels. Results are averaged over seven subjects. 2 cm interelectrode distance and TD features were used for this analysis, but the trend existed across all interelectrode distances tested. Error bars show +/− 1 SEM.