When I use Rif to call a R function, I always get a RArray as output. How to convert the RArray to julia Array, and how to get its size?
julia> using Rif
julia> initr()
julia> A=R("cbind(c(1,2,3),c(4,5,6))")
RArray{Float64,2}(Ptr{Void} @0x000000000d0baf68)
julia> size(A)
ERROR: `size` has no method matching size(::RArray{Float64,2})
