Fig. 5
From: Functional activity level reported by an informant is an early predictor of Alzheimer’s disease
SHAP importance. The figure displays the SHAP summary plot of the features of the RF model. A dot is created for each feature attribution value for the model of each subject. Dots are colored according to feature values. Thus, higher values (represented by red color) for FAQ and lower values for RAVLT -Im, -Delay, and HC (blue) increase the prediction of conversion to AD. Symmetrically, low values in FAQ and high values in RAVLT and HC decrease the prediction of conversion to AD. When the distribution is clustered around 0 indicates that the feature is less relevant. The more skewed the distribution, the more important the feature. The features are ordered according to their importance