Hi there, I'm using DataFrames package and having problems using NA on Array{Any}. Here is the thing:
julia> a = [true 2 "hi"] 1x3 Array{Any,2}: true 2 "hi" That's expected, Julia had no way to promote this elements to a single concrete type, so I got an Array{Any}. Now, if I try: julia> a[3] = NA 1x3 Array{Any,2}: true 2 NA Thats also expected! NA is of NAType, that is a subtype of Any (as any other type). But if I try: julia> a = [true 2 NA] ERROR: no method convert(Type{Int64}, NAtype) in setindex! at multidimensional.jl:63 in cat at abstractarray.jl:625 in hcat at abstractarray.jl:632 That's unexpected. What am I missing? Thanks and sorry about my poor English.