Burde lave som en discussion el. lign #347
Description
Information om dette:
'There is a dedicated function, range(), that does the same. However it returns two values (for each row), and the summarise function expects to get one value.
If we would like to use the range() function, we can add it using the reframe() function instead of summarise():' - https://kubdatalab.github.io/R-toolbox/descript-stat.html