For some reason, I need to build a function to compute percentiles of weighted samples. The only formula I found to estimate weighted percentile is: [image: image.png] This formula corresponds to R-7 (one of the current rules to estimate with non-weighted samples.) I have implemented it and face two problem: 1. I want to make PR but I'm not sure if its okay that implement it only for R-7 temporally because it's hard to find the version for each rule. 2. I'm new to apache. Is there a workflow for people to contribute code to the repository? Information is scattered on different web pages.
Thanks
