Predicting Potential PRRSV-2 Variant Emergence through Phylogenetic Inference

Figure 2

Matrix of Spearman’s correlation coefficients (ρ) between all candidate early indicators for the overall data and each prediction scenario data with background color corresponding to the strength of correlation from 1 (red) to −1 (blue) (upper panel), their data density plots (diagonal), and bivariate scatterplots colored by the scenario with LOESS curves fitted (red line) and associated 95% confidence intervals (gray polygon) (lower panel).