From bd59b5d190503fda7b9c7cf97c5fbb62b48cb5ee Mon Sep 17 00:00:00 2001
From: Lorenzo Volpi <lorenzo.volpi@outlook.com>
Date: Thu, 15 Jan 2026 18:14:50 +0100
Subject: [PATCH] fixed deprecated numpy call to in1d

---
 quapy/data/datasets.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/quapy/data/datasets.py b/quapy/data/datasets.py
index c08748f..801b968 100644
--- a/quapy/data/datasets.py
+++ b/quapy/data/datasets.py
@@ -758,7 +758,7 @@ def fetch_UCIMulticlassLabelledCollection(dataset_name, data_home=None, min_clas
         # restrict classes to only those with at least min_ipc instances
         classes = classes[data.counts() >= min_ipc]
         # filter X and y keeping only datapoints belonging to valid classes
-        filter_idx = np.in1d(data.y, classes)
+        filter_idx = np.isin(data.y, classes)
         X, y = data.X[filter_idx], data.y[filter_idx]
         # map classes to range(len(classes))
         y = np.searchsorted(classes, y)