Package "car" does not install on Mac

[mara]

Hi @Luisa,

From looking at the error message, it seems your problem is upstream, as you cannot install the dependencies (the packages that car needs in order to be installed). This starts with RcppEigen which cannot be installed because you don't have the libraries necessary to build it – in this case, -lgfortran.

The post below should help you get that piece sorted:
https://thecoatlessprofessor.com/programming/rcpp-rcpparmadillo-and-os-x-mavericks--lgfortran-and--lquadmath-error/#after-r-3-4-0

For future reference, unless your problem is with the IDE itself (learn more about the difference between R and RStudio in the FAQ, below), it's best to file it in a category other than RStudio IDE!

Differentiating R from RStudio

Aside: goals for this thread

I'm hoping this will help people disambiguate R from RStudio, and also help with getting questions in the right category. This is a bit of a mashup of the times I've tried to explain this in individual threads, so please feel free to add to this topic for further clarification/point out corrections, etc.

Before putting a code-related question in the #rstudio-ide category or using the rstudio tag, it's helpful to ask yourself: Does this work in the regular R GUI, but not when you're in RStudio? If you're using RStudio, you're using R — RStudio is just an IDE (Integrated Development Environment) in which you are using the R language. (On of my favourite fi…