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Allow a transform function to be applied to each chunk #18

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xiaodaigh opened this issue Mar 26, 2019 · 0 comments

xiaodaigh commented Mar 26, 2019 •

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Sometimes we wish to load the data chunk by chunk and apply a function to it instead of loading it into memory.

E.g. I may want to load each chunk and then save each function as a feather file. I would do it like this

readcsv("file/path.csv") do (chunk_id, chunk)
    Feather.save(chunk_id*".feather", chunk)
end

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