is here someone who experience with Design of Experiments eg. statistical experiment planning in R. Is there a recomendable packadge and are there some examples how to structure the dataset etc.?
This pdf might be of help to you. I personally have no experience so I can not provide any guarantee. Sorry! I suggest this because the topics are well organized and explained.
There is a free course and book from Kevin Dunn about "Process Improvement using data", which has a chapter about DoE. He uses R in his examples. Check out: https://learnche.org/pid/
I have a YouTube channel with some tutorials on Design of Experiments using R. You can check them here: https://www.youtube.com/channel/UCaJFDod6A2i_5IySkvFlFwQ
The main packages that I use are the "rsm" and the "FrF2", in addition to dplyr, ggplot2, etc.
If you are interested in courses, I have also a course on "Design and Analysis of Experiments" using R: