diff --git a/data_formatting.R b/data_formatting.R
index f2b0c9d..5d9af81 100755
--- a/data_formatting.R
+++ b/data_formatting.R
@@ -3,10 +3,8 @@ getwd()
 setwd('~/git/covid_analysis/')
 getwd()
 ############################################################
-# TASK: basic plots
-
-# useful links:
-# http://www.sthda.com/english/wiki/ggplot2-dot-plot-quick-start-guide-r-software-and-data-visualization
+# TASK: data cleaning and manipulation to allow plotting
+# and analysis
 ############################################################
 # source data
 source("read_data.R")
diff --git a/ks_test_all_timepoints.R b/ks_test_all_timepoints.R
index 8581de5..8a39f56 100644
--- a/ks_test_all_timepoints.R
+++ b/ks_test_all_timepoints.R
@@ -3,10 +3,7 @@ getwd()
 setwd('~/git/covid_analysis/')
 getwd()
 ############################################################
-# TASK: basic plots
-
-# useful links:
-# http://www.sthda.com/english/wiki/ggplot2-dot-plot-quick-start-guide-r-software-and-data-visualization
+# TASK: KS test b/w outcome groups for ALL timepoints (cumulative)
 ############################################################
 # source data
 source("read_data.R")
diff --git a/ks_test_time.R b/ks_test_time.R
index 0b6022c..f9ed54d 100644
--- a/ks_test_time.R
+++ b/ks_test_time.R
@@ -3,10 +3,7 @@ getwd()
 setwd('~/git/covid_analysis/')
 getwd()
 ############################################################
-# TASK: basic plots
-
-# useful links:
-# http://www.sthda.com/english/wiki/ggplot2-dot-plot-quick-start-guide-r-software-and-data-visualization
+# TASK: KS test b/w outcome groups at each timepoint
 ############################################################
 # source data
 source("read_data.R")
diff --git a/read_data.R b/read_data.R
index fc0a0c1..420818b 100755
--- a/read_data.R
+++ b/read_data.R
@@ -3,10 +3,7 @@ getwd()
 setwd('~/git/covid_analysis/')
 getwd()
 ############################################################
-# TASK: basic plots
-
-# useful links:
-# http://www.sthda.com/english/wiki/ggplot2-dot-plot-quick-start-guide-r-software-and-data-visualization
+# TASK:  Read data to serve as input for downstream analyses
 ############################################################
 # load libraries, packages and local imports
 
diff --git a/stats_paired.R b/stats_paired.R
index ffeeeca..6972c13 100755
--- a/stats_paired.R
+++ b/stats_paired.R
@@ -3,10 +3,7 @@ getwd()
 setwd('~/git/covid_analysis/')
 getwd()
 ############################################################
-# TASK: basic plots
-
-# useful links:
-# http://www.sthda.com/english/wiki/ggplot2-dot-plot-quick-start-guide-r-software-and-data-visualization
+# TASK: paired analysis on time for mediators
 ############################################################
 # source data
 source("read_data.R")
diff --git a/stats_unpaired.R b/stats_unpaired.R
index c9cac4d..1274486 100755
--- a/stats_unpaired.R
+++ b/stats_unpaired.R
@@ -3,10 +3,7 @@ getwd()
 setwd('~/git/covid_analysis/')
 getwd()
 ############################################################
-# TASK: basic plots
-
-# useful links:
-# http://www.sthda.com/english/wiki/ggplot2-dot-plot-quick-start-guide-r-software-and-data-visualization
+# TASK: unpaired analysis for mediators at each timepoint
 ############################################################
 # source data
 source("read_data.R")
diff --git a/summary_stats_time.R b/summary_stats_time.R
index fb4b584..32e1897 100755
--- a/summary_stats_time.R
+++ b/summary_stats_time.R
@@ -3,10 +3,7 @@ getwd()
 setwd('~/git/covid_analysis/')
 getwd()
 ############################################################
-# TASK: basic plots
-
-# useful links:
-# http://www.sthda.com/english/wiki/ggplot2-dot-plot-quick-start-guide-r-software-and-data-visualization
+# TASK: summary stats of mediators by time
 ############################################################
 # source data
 source("read_data.R")
diff --git a/summary_stats_time_outcome.R b/summary_stats_time_outcome.R
index 8fb6e8c..edf0968 100755
--- a/summary_stats_time_outcome.R
+++ b/summary_stats_time_outcome.R
@@ -3,10 +3,7 @@ getwd()
 setwd('~/git/covid_analysis/')
 getwd()
 ############################################################
-# TASK: basic plots
-
-# useful links:
-# http://www.sthda.com/english/wiki/ggplot2-dot-plot-quick-start-guide-r-software-and-data-visualization
+# TASK: summary stats of mediators by time and outcome
 ############################################################
 # source data
 source("read_data.R")