diff --git a/scripts/7_normalization.Rmd b/scripts/7_normalization.Rmd
index 52297e2..583c20b 100644
--- a/scripts/7_normalization.Rmd
+++ b/scripts/7_normalization.Rmd
@@ -99,6 +99,7 @@ save(Betas_clean_filtered_quantile_bmiq, file = paste0(user_choices$project_name
 
 ```{r normalize unfiltered probes, include=FALSE}
 # Normalization of unfiltered data
+# Functional normalization 
 gRatioSet_clean_unfiltered_quantile <- preprocessQuantile(RGSet_clean)
 save(gRatioSet_clean_unfiltered_quantile, file = paste0(user_choices$project_name, 
                                          "/processed_data/gRatioSet_clean_unfiltered_quantile.Rdata")) # output: GenomicRatioSet