From: Jérôme Benoit <jerome.benoit@piment-noir.org>
Date: Thu, 19 Feb 2026 00:40:34 +0000 (+0100)
Subject: fix(zigzag): skip minmax normalization with single valid value
X-Git-Url: https://git.piment-noir.org/?a=commitdiff_plain;h=a56379c5948381a4261563f560d27993e32bae40;p=freqai-strategies.git

fix(zigzag): skip minmax normalization with single valid value
---

diff --git a/quickadapter/user_data/strategies/Utils.py b/quickadapter/user_data/strategies/Utils.py
index 70327d1..d7292c2 100644
--- a/quickadapter/user_data/strategies/Utils.py
+++ b/quickadapter/user_data/strategies/Utils.py
@@ -1738,7 +1738,8 @@ def zigzag(
 
         arr = np.asarray(values, dtype=float)
         valid_mask = np.isfinite(arr)
-        if not valid_mask.any():
+        n_valid = valid_mask.sum()
+        if n_valid < 2:
             return values
 
         min_val = np.nanmin(arr)