Method create

inst/include/Rcpp/DataFrame.h:105–107

        inline R_xlen_t cols()  const { return DataFrame_Impl::length(); }

        static DataFrame_Impl create(){
            return DataFrame_Impl() ;
        }
        template <typename... T>
        static DataFrame_Impl create(const T&... args) {
            return DataFrame_Impl::from_list(Parent::create(args...));