Table 2 Confusion matrices showing the accuracy of CHAID-regression tree model to (A) training data (post-FMT day 7 composition), (B) validation data (using 10 samples withheld from the training data) and (C) test data (post-FMT day 8–20 composition)

From: Predicting recurrence of Clostridium difficile infection following encapsulated fecal microbiota transplantation