diff --git a/quacc/experiments/util.py b/quacc/experiments/util.py
index d2af476..6d35572 100644
--- a/quacc/experiments/util.py
+++ b/quacc/experiments/util.py
@@ -1,15 +1,11 @@
-import os
 from time import time
 
+import numpy as np
 from quapy.data.base import LabelledCollection
 from sklearn.base import BaseEstimator
 from sklearn.metrics import confusion_matrix
 
 
-def getpath(basedir, cls_name, acc_name, dataset_name, method_name):
-    return f"results/{basedir}/{cls_name}/{acc_name}/{dataset_name}/{method_name}.json"
-
-
 def fit_method(method, V):
     tinit = time()
     method.fit(V)
@@ -45,7 +41,13 @@ def predictionsCAPcont_table(method, test_prot, gen_acc_measure, oracle=False):
 
 
 def prevs_from_prot(prot):
-    return [Ui.prevalence() for Ui in prot()]
+    def _get_plain_prev(prev: np.ndarray):
+        if prev.shape[0] > 2:
+            return tuple(prev[1:])
+        else:
+            return prev[-1]
+
+    return [_get_plain_prev(Ui.prevalence()) for Ui in prot()]
 
 
 def true_acc(h: BaseEstimator, acc_fn: callable, U: LabelledCollection):