From 178c2c8375e04b3b5b2b80de4ecbca97dd00394c Mon Sep 17 00:00:00 2001
From: Groni3000 <72792408+Groni3000@users.noreply.github.com>
Date: Fri, 3 Nov 2023 20:51:13 +0200
Subject: [PATCH 1/2] speed_up true range

---
 ta/utils.py | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/ta/utils.py b/ta/utils.py
index 9f93bab..cae06ed 100644
--- a/ta/utils.py
+++ b/ta/utils.py
@@ -39,11 +39,12 @@ def _check_fillna(self, series: pd.Series, value: int = 0) -> pd.Series:
     def _true_range(
         high: pd.Series, low: pd.Series, prev_close: pd.Series
     ) -> pd.Series:
-        tr1 = high - low
-        tr2 = (high - prev_close).abs()
-        tr3 = (low - prev_close).abs()
-        true_range = pd.DataFrame(data={"tr1": tr1, "tr2": tr2, "tr3": tr3}).max(axis=1)
-        return true_range
+        h, l, c = high.values, low.values, prev_close.values
+        tmp = np.max([h-l, np.abs(h-c), np.abs(l-c)], axis=0)
+        tmp[0] = h[0] - l[0] # dunno about it.
+        
+        return pd.Series(tmp, index=high.index, name='TR')
+
 
 
 def dropna(df: pd.DataFrame) -> pd.DataFrame:

From 488bfbe11597a26a1a02627c7ff61ac6e8ec13f9 Mon Sep 17 00:00:00 2001
From: Groni3000 <72792408+Groni3000@users.noreply.github.com>
Date: Fri, 3 Nov 2023 21:06:35 +0200
Subject: [PATCH 2/2] speed_up

---
 ta/utils.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/ta/utils.py b/ta/utils.py
index cae06ed..ee50dc4 100644
--- a/ta/utils.py
+++ b/ta/utils.py
@@ -42,7 +42,6 @@ def _true_range(
         h, l, c = high.values, low.values, prev_close.values
         tmp = np.max([h-l, np.abs(h-c), np.abs(l-c)], axis=0)
         tmp[0] = h[0] - l[0] # dunno about it.
-        
         return pd.Series(tmp, index=high.index, name='TR')