Hi, my name is ZJ. I love contributing to the open-source data science community. I mainly code in R and Julia with a dash of Python and a minimal amount of Scala thrown in.
A package that uses Integer (bits types) to store strings more efficiently. Great for sorting and group-by operations. It's been handed over to the JuliaString org. Note: you probably should be using InlineStrings.jl instead
A fast group by functionality. I shared the ideas I had with the main developer of DataFrames.jl and DataFrames.jl were onto the same kind of ideas anyway, so they ended up optimizing the group-by. This makes it unnecesssary to keep maintaining the package.