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Use SentinelVector rather than Vector{T, Missing}? #21

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nickrobinson251 opened this issue Sep 30, 2021 · 1 comment
Open

Use SentinelVector rather than Vector{T, Missing}? #21

nickrobinson251 opened this issue Sep 30, 2021 · 1 comment
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idea needs some investigation before we decide

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nickrobinson251 commented Sep 30, 2021 •
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see https://github.com/JuliaData/SentinelArrays.jl
@nickrobinson251 nickrobinson251 added the idea needs some investigation before we decide label Oct 26, 2021
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nickrobinson251 commented Nov 14, 2021 •
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there are a lot of Union{T,Missing} columns where either all the data is missing or all the data is of type T, but there should never be a mix of Ts and Missings. These would be good candidates for SentintelVectors, so that (when the data is not missing) users can get a Vector{T} without having to make a copy of the data

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