Rasmusma1995

It seem that gsub does produce the same result: ```r gsub("[[:alnum:]]", "_", "Løn^2") [1] "___^_" ``` However explicitly writing "I(Løn^2)" produce an even weirder result: ```r fixest:::fixest_fml_rewriter(as.formula(y~ gender + I(Løn^2)))...