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. 2016 Oct 19;10:15. doi: 10.3389/fnbot.2016.00015

Figure 1.

Figure 1

Linear and non-linear offline classification of four hand postures. (A) and (B) show results from 16 non-amputees and 4 partial-hand amputees (including 1 bilateral partial-hand amputee), respectively. Each classifier was trained and tested using data from seven wrist positions. LDA, linear discriminant analysis; QDA, quadratic discriminant analysis; LNN, neural network with linear activation functions; MLPANN, neural network with non-linear activation functions. Error bars represent SE (*significantly lower than LDA, LNN, and MLPANN).