Julia can beat data.table at group-by, sometimes

Julia can be faster than data.table in some group-by operations! This post details a number of strategies employed to try and optimize Julia group-by performance. Read more

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The Motivation for Julia

I guess I can give some historical motivation here. When we started working on Julia in 2009, the Python ecosystem was nowhere near where it is today: PyPy was pretty new (1.0 release 2007, the first version to be able to run any substantial Python app... (more…)

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