Could you expand on why? I'll be starting a data-heavy side project and have meant to make an effort with Haskell for a while I always thought that R is fairly

Could you expand on why? I'll be starting a data-heavy side project and have meant to make an effort with Haskell for a while I always thought that R is fairly unmatched in both breadth and depth for statistical work and general data analysis, with the Python stack in second (e.g., numpy+scipy+pandas+...).