Principal Components Analysis of MMMP Data.

<p>(a) The mean value of the cumulative percentage of the variance in the data explained is plotted as a function of the number of principal components for data representing 102 human tissue samples. Red error bars indicate +/–one standard deviation. (b) The cumulative percentage of variance explained by the first <i>X</i> principal components is shown as a function of <i>X</i> for an example tissue section from the terminal ileum of the small intestine (sample #1.10.7). (c) H&E (hematoxylin and eosin) stained image of sample #1.10.7. (d) Images depicting scaled intensity values for the first three principal components (PC-1, PC-2, and PC-3) of the MMMP data matrix for sample #1.10.7 are shown.