I am trying to understand the internals of the datatype Union{Missing, Float64}. From what I understand, this type encodes the presence of elements in the array by means of a hidden Array{UInt8}, which flags which elements are present and which are not. I tried to determine if this was true using s…

cf [image] sizeof(::Vector{Union{missing,T}}), and hypothetical size General Usage Two (related) questions: julia> sizeof(vcat(ones(10), fill(missing, 10))) 160 but I expected 20*9 because of the type tag, what am I missing? v"1.1.0-DEV.298". If I have a type T wh…

Question about internal representation of Union{Missing, Float64}

General Usage Performance

Tamas_Papp October 31, 2018, 11:07am 2

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Question about internal representation of Union{Missing, Float64}

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