get_disp_feats: Select the important features to be displayed.
In treeheatr: Heatmap-Integrated Decision Tree Visualizations

Select features with p-value (computed from decision tree) < 'p_thres' or all features if 'show_all_feats == TRUE'.

1	get_disp_feats(fit, feat_names, show_all_feats, p_thres)

`fit`	constparty object of the decision tree.
`feat_names`	Character vector specifying the feature names in dat.
`show_all_feats`	Logical. If TRUE, show all features regardless of 'p_thres'.
`p_thres`	Numeric value indicating the p-value threshold of feature importance. Feature with p-values computed from the decision tree below this value will be displayed on the heatmap.