Fig. 2From: High-throughput analysis of chemical components and theoretical ethanol yield of dedicated bioenergy sorghum using dual-optimized partial least squares calibration modelsFlowchart of NIRS qualitative and quantitative analyses. PCA principal component analysis, LDA linear discriminant analysis, SPXY sample set partitioning based on joint X–Y distances, CARS competitive adaptive reweighted sampling, SR selectivity ratio, VIP variable importance for projection, UVE uninformative variable elimination, MC-UVE UVE couple with the principle of Monte Carlo, PLS partial least squaresBack to article page