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.
