diff --git a/file_load.py b/file_load.py
index 47b559e..3ec6645 100644
--- a/file_load.py
+++ b/file_load.py
@@ -81,9 +81,13 @@ def corelation():
 	que={}
 	for i in data:
 		for j in data:
-			try:
-				que[i,j]=data[i].corr(data[j])
-			except:
-				pass
+			if i!=j:
+				try:
+					que[i,j]=data[i].corr(data[j])
+					que[j,i]=que[i,j]
+				except:
+					pass
+			else:
+				break
 	return que