diff --git a/meta_data_analysis/pnca_AF_and_OR_calcs.R b/meta_data_analysis/AF_and_OR_calcs.R
similarity index 98%
rename from meta_data_analysis/pnca_AF_and_OR_calcs.R
rename to meta_data_analysis/AF_and_OR_calcs.R
index f1b5321..c1915dc 100644
--- a/meta_data_analysis/pnca_AF_and_OR_calcs.R
+++ b/meta_data_analysis/AF_and_OR_calcs.R
@@ -1,6 +1,8 @@
 #============================================
-# TASK: to calculate allele frequency and OR
-# on master data
+# TASK: To calculate Allele Frequency and
+# Odds Ratio from master data
+# and add the calculated params to meta_data extracted from
+# pnca_data_extraction.py
 #===========================================
 homedir = '~'
 getwd()
diff --git a/meta_data_analysis/pnca_data_extraction.py b/meta_data_analysis/data_extraction.py
similarity index 100%
rename from meta_data_analysis/pnca_data_extraction.py
rename to meta_data_analysis/data_extraction.py