Someone else mentioned pandas and AQR; I'll also mention BeakerX (Beaker Notebook) which was developed by Two Sigma: https://github.com/twosigma/beakerx https:/

Someone else mentioned pandas and AQR; I'll also mention BeakerX (Beaker Notebook) which was developed by Two Sigma: https://github.com/twosigma/beakerx https://github.com/twosigma/beakerx You can read more about it here, too: http://beakernotebook.com http://beakernotebook.com Jane Street is also pretty awesome - they open sourced their in-house standard library for OCaml, called Base: https://github.com/janestreet/base https://github.com/janestreet/base (they use a lot of OCaml).