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. 2020 Mar 31;10(4):134. doi: 10.3390/metabo10040134

Figure 5.

Figure 5

Orthogonal projection to latent structures (OPLS) results from flesh and part of pineapple. Explanatory variables in flesh part are 47 metabolites, while in peel part are 54 metabolites. Response variable for both models is the ripening stages with numbered as follows: C0 stage as 1, C1 stage as 2, C2 stage as 3, C3 stage as 4, and C4 stage as 5. Value of R2, Q2, RMSEE, and RMSECV were used to evaluate the model. (a) OPLS model of flesh part; (b) OPLS model of peel part.