Fig. 4From: Infestation risk of the intermediate snail host of Schistosoma japonicum in the Yangtze River Basin: improved results by spatial reassessment and a random forest approachPlot of the random forest model on validation set by different spatial resampling of snail records. Distance refers to the gap between the centres of adjacent grid cells; Rate refers to the ratio of the number of recorded snail infestation sites to that of the total investigated sites. Threshold, Kappa and AUC were determined by random forest model validation setBack to article page