two-point statistics

[dnelson]

It would be useful to support various easy/common two point statistics, such as two-point correlation function.

Definitely via external package. Which one(s)?

(load upon request; no overall package dependency)

[sparxastronomy]

PyLians3 is really easy to setup and quite fast, since it's FFT based. We can add that. It's parallel on a single node (uses OpenMP with Cython).

In my testing for the full Eagle Sub-boxes, you get the power spectrum in ~ 40-60s.