Correlations of experimentally measured and predicted values of monosaccharides. Diagrammatical representation of correlations between experimental and predicted major cell wall monosaccharides in an example set of six rice outliers. The similar trend of variation from the reference in both the predicted and experimental values demonstrates the precision of the PLS model. The experimental and predicted references (circle and square) indicate the average values (mol%) based on five non-outlier samples; the experimental values (asterisk) are values for individual samples (mol%); the predicted amounts (cross) are the values (mol%) determined by the model. The arrows indicate the deviation of the experimental or predicted value from the corresponding reference value, in mol%.