I would like to call R functions from within Julia on very large data structures.
I understand that PyCall can share variables between Julia and Python without copying them.
I also understand that as of August 2019 variables still needed to be copied when transferring between R and Julia (https://github.com/Non-Contradiction/JuliaCall/issues/114).
Q1: Is there any way to call R functions in Julia without having to copy data structures?
Q2: Does Apache Arrow work with RJulia?
Q3: If there is a way to transfer variables without copying them, does this apply to all data types? Numerical array, categorical array, time array, table, list, and dictionary?
Thank you in advance