Self binning histogram (#40875)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/40875
This op uses the given num_bins and a spacing strategy to automatically bin and compute the histogram of given matrices.
Test Plan: Unit tests.
Reviewed By: neha26shah
Differential Revision: D22329069
fbshipit-source-id: 28406b94e284d52d875f73662fc82f93dbc00064
