Copyright © 2014 Elsevier Inc. All rights reserved. Chapter 17 Copyright © 2014 Elsevier Inc. All rights reserved.

Copyright © 2014 Elsevier Inc. All rights reserved. Figure 17.1 Samples from a two-dimensional Gaussian distribution where the dimensions are uncorrelated (A) and correlated (B). Copyright © 2014 Elsevier Inc. All rights reserved.

Copyright © 2014 Elsevier Inc. All rights reserved. Figure 17.2 The first two principal component axes plotted with the original correlated data b. 3 Copyright © 2014 Elsevier Inc. All rights reserved.

Copyright © 2014 Elsevier Inc. All rights reserved. Figure 17.3 The correlated data b projected on the first two principal components. 4 Copyright © 2014 Elsevier Inc. All rights reserved.

Copyright © 2014 Elsevier Inc. All rights reserved. Figure 17.4 A plot of 200 extracellular action potential waveforms recorded from a microelectrode array implanted in the primary motor cortex of a macaque monkey. 5 Copyright © 2014 Elsevier Inc. All rights reserved.

Copyright © 2014 Elsevier Inc. All rights reserved. Figure 17.5 A scatterplot of the motor cortical spike waveforms projected on the first and second principal components. 6 Copyright © 2014 Elsevier Inc. All rights reserved.

Copyright © 2014 Elsevier Inc. All rights reserved. Figure 17.6 A three-dimensional histogram showing the frequency of motor cortical spike waveforms projected on the first (PC1) and second (PC2) principal components. 7 Copyright © 2014 Elsevier Inc. All rights reserved.

Copyright © 2014 Elsevier Inc. All rights reserved.

Copyright © 2014 Elsevier Inc. All rights reserved.

Copyright © 2014 Elsevier Inc. All rights reserved.