reading time (full): 30 min.
Data Wrangling with dplyr is a popular activity in data science/ statistics. A number of tutorial are available, but not so many in German language.
Data set analyzed in nycflights13::flights (R package). Available on CRAN. Ok, choosing this data set is not very creative, but, hey, quite nice data:)
Thus, here is a case study in German language; code (R)is on Github.