I am currently programming in R through the Dataiku and I have a very special question, how can I write this two logical characters in the same phrase? When I am working just with & or | separetly it is working, but once I try:
Hum, this is definitely an R question and not DSS related but it looks indeed like a correct R syntax. I don't know what problem you are actually experiencing (in particular, error or output you don't expect) but I can tell you that you can indeed combine those boolean operators. If you find it easier to separate the computation into several steps that you can check individually, don't hesitate.