I am running into an issue with R-Studio where when I attempt to run regression of a subset of the full data frame I get the following error:
Error in contrasts<-(*tmp*, value = contr.funs[1 + isOF[nn]]) :
contrasts can be applied only to factors with 2 or more levels
I understand this may mean that one or more variables have one level. But, the issue is all my variables are numerical and should not have this error. Is there anything I can do to write something within the code that will skip over these errors and proceed with the data that does work?
Write now it reads like you are suggesting there is an issue with how RStudio runs a regression. I'd suggest summarizing what you are doing and the error you get.
Also, with a question like this, it's polite to pose your questions as a reproducible example, or reprex for short. (FAQ: What's a reproducible example (`reprex`) and how do I create one? I'd particularly like to see a minimal snippet of data that produces this error). That'll make it much easier to help diagnose the issue here.