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. 2018 Aug 15;9:1846. doi: 10.3389/fmicb.2018.01846

FIGURE 4.

FIGURE 4

Partial least squares discriminant analysis (PLS-DA) scores plots of the microbiota in four stomachs based on sequencing at the phylum level. PLS-DA is a partial least squares regression of a set of Y of binary variables describing the categories of a categorical variable on a set X of predictor variables. It is a compromise between the usual discriminant analysis and a discriminant analysis on the significant principal components of the predictor variables.