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Well, only the DataFrames.jl package comes to my mind. However, there exist a few packages that extend this package (DataFramesMeta.jl or Query.jl; these overlap to some extend, but the newer Query package seems to go beyond DataFrames and offers some piping capabilities to interface with plotting packages). In general: During the three years of my PhD some language / package upgrades broke some of my scripts (during 0.4 -> 0.5 and -> 0.6), but the language (and its extensive documentation, online and from the source code of the packages) is very pleasant to use - the deprecation warnings usually help you to adjust your code in time. I have been relaying heavily on said DataFrame package, and am quite happy - the community is usually responsive and helpful in case of problems or questions.