From 57396433084295fda2a9874a86a4cd5fb39f7b95 Mon Sep 17 00:00:00 2001
From: "damon.yuan" <damon.yuan@okg.com>
Date: Mon, 2 Oct 2023 20:55:47 +0800
Subject: [PATCH] pass the period argument to OLS_Slope_InterceptN

---
 backtrader/indicators/ols.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backtrader/indicators/ols.py b/backtrader/indicators/ols.py
index 639a84502..716261d76 100644
--- a/backtrader/indicators/ols.py
+++ b/backtrader/indicators/ols.py
@@ -68,7 +68,7 @@ class OLS_TransformationN(PeriodN):
     params = (('period', 10),)
 
     def __init__(self):
-        slint = OLS_Slope_InterceptN(*self.datas)
+        slint = OLS_Slope_InterceptN(*self.datas, period=self.p.period)
 
         spread = self.data0 - (slint.slope * self.data1 + slint.intercept)
         self.l.spread = spread