diff --git a/means_merge_test.py b/means_merge_test.py
new file mode 100644
index 0000000..396c2e0
--- /dev/null
+++ b/means_merge_test.py
@@ -0,0 +1,30 @@
+#!/usr/bin/python3
+import pandas as pd
+import sys
+
+def imp_selector(index):
+    return "attr1" if i % 2 == 0 else "attr2"
+
+a = []
+imp_attr_list = {}
+for i in range(50):
+    a.append((i,i+10))
+    imp_attr_list[i]=imp_selector(i)
+
+df = pd.DataFrame.from_records(a, columns=["attr1", "attr2"])
+
+m_list=[]
+mean_list= dict()
+for v in set(imp_attr_list.values()):
+    rolling_mean = df[v].rolling(7).mean()
+    mean_list[v] = rolling_mean.values
+
+#  for k,v in mean_list.items():
+    #  print(k,v)
+for i in range(df.shape[0]):
+    value = mean_list[imp_attr_list[i]][i]
+    df.loc[i, "7_days_means"] = value
+
+print(df)
+
+