merge pr #782: fix dbarts class prediction order

Author: simonpcouch

R/bart.R

@@ -196,7 +196,7 @@ dbart_predict_calc <- function(obj, new_data, type, level = 0.95, std_err = FALS
     res <- tibble::tibble(.pred = apply(post_dist, 2, mean, na.rm = TRUE))
   } else if (type == "class") {
     mn <- apply(post_dist, 2, mean, na.rm = TRUE)
-    lvl <- ifelse(mn > 0.5, obj$lvl[1], obj$lvl[2])
+    lvl <- ifelse(mn > 0.5, obj$lvl[2], obj$lvl[1])
     lvl <- factor(lvl, levels = obj$lvl)
     res <- tibble::tibble(.pred_class = lvl)
   } else if (type == "prob") {