That person likely got no assistance because they did not provide a reprex of their attempted solution. Code without data is ... not so useful.
You yourself probably found it hard to leverage the partial work of the other poster because I'm guessing you don't have their data?
For a guide on how to reprex well (to get the best result from this forum) please read the guide.
FAQ: How to do a minimal reproducible example ( reprex ) for beginners