Fig. 2: Pairwise Spearman Rank correlations between chemical data and sensorial data from the trained panel.
From: Predicting and improving complex beer flavor through machine learning

Heatmap colors indicate Spearman’s Rho. Axes are organized according to sensory categories (aroma, taste, mouthfeel, overall), chemical categories and chemical sources in beer (malt (blue), hops (green), yeast (red), wild flora (yellow), Others (black)). See Supplementary Data 6 for all correlation values.