diff --git a/code/01_preprocessing_haum.R b/code/01_preprocessing_haum.R
index a840b44..8c31476 100644
--- a/code/01_preprocessing_haum.R
+++ b/code/01_preprocessing_haum.R
@@ -1,3 +1,19 @@
+# 01_preprocessing_haum.R
+#
+# content: (1) Parse raw log files
+#          (2) Create event logs
+#          (3) Add meta data
+#
+# input:  raw log files from ../data/haum/*.log
+#         ../data/metadata/feiertage.csv
+#         ../data/metadata/schulferien_2016-2018_NI.csv
+#         ../data/metadata/schulferien_2019-2025_NI.csv
+# output: raw_logfiles_<timestamp>.csv
+#         event_logfiles_<timestamp>.csv
+#         event_logfiles_<timestamp>.csv
+#
+# last mod: 2023-10-23, NW
+
 # setwd("C:/Users/nwickelmaier/Nextcloud/Documents/MDS/2023ss/60100_master_thesis/code")
 
 #library(mtt)
@@ -6,20 +22,19 @@ devtools::load_all("../../../../software/mtt")
 now <- format(Sys.time(), "%Y-%m-%d_%H-%M-%S")
 #now <- "2023-09-23_01-31-30"
 
-#--------------- Parse raw log files ---------------
+#--------------- (1) Parse raw log files ---------------
 
 path <- "../data/haum/LogFiles/"
 folders <- dir(path)
 
-#datraw <- parse_logfiles(folders, path)
-datraw <- read.table("../data/haum/raw_logfiles_small_2023-09-26_13-50-20.csv",
-                     sep = ";", header = TRUE)
+datraw <- parse_logfiles(folders, path)
 
-# export data
-# write.table(datraw, paste0("../data/haum/raw_logfiles_", now, ".csv"),
-#             sep = ";", row.names = FALSE)
+## Export data
 
-#--------------- Create event logs ---------------
+write.table(datraw, paste0("../data/haum/raw_logfiles_", now, ".csv"),
+            sep = ";", row.names = FALSE)
+
+#--------------- (2) Create event logs ---------------
 
 datlogs <- create_eventlogs(datraw,
            xmlpath = "../data/haum/ContentEyevisit/eyevisit_cards_light/")
@@ -30,12 +45,7 @@ topics <- extract_topics(artworks, xmlfiles = paste0(artworks, ".xml"),
 
 datlogs_topics <- add_topic(datlogs, topics = topics)
 
-
-# export data
-# write.table(datlogs_topics, paste0("../data/haum/event_logfiles_", now, ".csv"),
-#             sep = ";", row.names = FALSE)
-
-#--------------- Add meta data ---------------
+#--------------- (3) Add meta data ---------------
 
 ## Read data for holiday
 
@@ -83,21 +93,15 @@ for (i in seq_len(nrow(sf))) {
 # TODO: How to handle stateCode? There will be several for certain types of
 # data sets... Not important here, since I only do NI.
 
-## Add metadata
+## Merge data
 
-# holidays
 dat1 <- merge(datlogs_topics, hd, by.x = "date.start", by.y = "date", all.x = TRUE)
-# school vacations
 dat2 <- merge(dat1, sfdat, by.x = "date.start", by.y = "date", all.x = TRUE)
 
 ## Export data
 
-write.table(dat2,
-            file = paste0("../data/haum/event_logfiles_small_metadata_", now, ".csv"),
+write.table(dat2, paste0("../data/haum/event_logfiles_", now, ".csv"),
             sep = ";", row.names = FALSE)
 
 # TODO: Maybe add infos about artworks?
 
-
-
-
diff --git a/code/02_metadata_haum.R b/code/02_metadata_haum.R
deleted file mode 100644
index 5e1f730..0000000
--- a/code/02_metadata_haum.R
+++ /dev/null
@@ -1,72 +0,0 @@
-# setwd("C:/Users/nwickelmaier/Nextcloud/Documents/MDS/2023ss/60100_master_thesis/")
-
-## Read data for holiday
-
-hd0 <- read.table("data/metadata/feiertage.csv", sep = ";", header = TRUE)
-hd0$X.br. <- NULL
-
-hd <- hd0[hd0$Abkuerzung == "NI", ]
-names(hd) <- c("state", "stateCode", "date", "holiday")
-hd$date <- as.POSIXct(hd$date)
-
-## Read data for school vacations
-
-# https://ferien-api.de/#holidaysPerStateAndYear
-# Data extracted (on Linux) via:
-# curl https://ferien-api.de/api/v1/holidays/NI > schulferien_NI.json
-
-# library(jsonlite)
-# 
-# dat <- read_json("data/metadata/schulferien_NI.json", simplify = TRUE)
-# dat$slug <- NULL
-# 
-# dat$name <- paste0(gsub("^(.*).niedersachsen.*", "\\1", dat$name),
-#                    gsub("^.*niedersachsen [0-9]{4}(.*)", "\\1",
-#                               dat$name))
-# 
-# write.table(dat, "data/metadata/schulferien_2019-2025_NI.csv", sep = ";",
-#             row.names = FALSE, quote = FALSE)
-
-sf1 <- read.table("data/metadata/schulferien_2016-2018_NI.csv", sep = ";",
-                  header = TRUE)
-sf2 <- read.table("data/metadata/schulferien_2019-2025_NI.csv", sep = ";",
-                  header = TRUE)
-sf <- rbind(sf1, sf2)
-sf$start <- as.Date(sf$start)
-sf$end <- as.Date(sf$end)
-
-sfdat <- NULL
-
-for (i in seq_len(nrow(sf))) {
-  date <- seq(sf$start[i], sf$end[i], by = 1)
-  sfdat <- rbind(sfdat, data.frame(date, vacations = sf$name[i],
-                                   stateCodeVacations = sf$stateCode[i]))
-}
-
-# TODO: How to handle stateCode? There will be several for certain types of
-# data sets... Not important here, since I only do NI.
-
-# load (small) event log data set
-#dat <- read.table("data/haum/event_logfiles_2023-09-23_01-31-30.csv",
-dat <- read.table("data/haum/event_logfiles_small_2023-10-19_18-25-26.csv",
-                  sep = ";", header = TRUE)
-dat$date.start <- as.POSIXct(dat$date.start)
-dat$date.stop <- as.POSIXct(dat$date.stop)
-dat$artwork <- sprintf("%03d", dat$artwork)
-dat$date <- as.Date(dat$date.start)
-
-## Add metadata
-
-# holidays
-dat1 <- merge(dat, hd, by = "date", all.x = TRUE)
-# school vacations
-dat2 <- merge(dat1, sfdat, by = "date", all.x = TRUE)
-
-## Export data
-
-write.table(dat2,
-            file = "data/haum/event_logfiles_small_metadata_2023-10-19_18-25-26.csv",
-            sep = ";", row.names = FALSE)
-
-# TODO: Maybe add infos about artworks?
-
diff --git a/code/read_trans_matrix.R b/code/read_trans_matrix.R
index fa09b83..aa67370 100644
--- a/code/read_trans_matrix.R
+++ b/code/read_trans_matrix.R
@@ -33,5 +33,5 @@ points(y.stop ~ x.stop, datmove, xlim = c(0, 3840), ylim = c(0, 2160), col = "bl
 points(ty ~ tx, dat, xlim = c(0, 3840), ylim = c(0, 2160), col = "red")
 legend("topleft", c("start", "stop", "trans"), col = c("black", "blue", "red"), pch = 21)
 
-# --> does not seem to be a good way to compare if trans values ae valid
+# --> does not seem to be a good way to compare *if* trans values are valid