1. A system for identifying groups of correlated representations of variables from spectrometry data, comprising: a spectrometer that analyzes a plurality of samples and produces a plurality of measured variables from the plurality of samples; a memory on which instructions are stored; and a processor in communication with the spectrometer and that reads the instructions from the memory and executes the instructions, the instructions comprising (a) obtaining the plurality of measured variables from the spectrometer, (b) dividing the plurality of measured variables into a plurality of measured variable subsets, (c) performing multivariate analysis on each measured variable subset, producing one or more group representations for each measured variable subset and a plurality of group representations for the plurality of measured variable subsets, (d) calculates calculating a total number of the plurality of group representations as a sum of a number of the one or more group representations produced for each measured variable subset, (e) if the total number is less than or equal to a maximum number of variables allowed for multivariate analysis, jumping to step (k), (f) dividing the plurality of group representations into a plurality of group representation subsets, (g) performing multivariate analysis on each group representation subset, producing one or more group representations for each group representation subset and a plurality of group representations for the plurality of group representation subsets, (h) calculating the total number of the plurality of group representations as a sum of a number of the one or more group representations produced for each group representation subset, (i) if the total number is less than or equal to the maximum number of variables, jumping to step (k), (j) if the total number is greater than the maximum number of variables, repeating steps (f)-(j), and (k) performing multivariate analysis on the plurality of group representations, producing a plurality of groups of correlated representations of variables.