Analysis by GitHub issues closed from pull-request or not

The goal of the analysis is to see whether GitHub issues are closed through pull-requests (either automatically or simply because an issue had a related, merged pull request) VERSUS issues are closed for other reasons (e.g., an idea dismissed without code change, request resolved).

The analysis may be expressed in total numbers and a ratio:

Week | Issues closed with PR | Issues closed without PR | Ratio with/total
---|---|---|---
1|12|88|12%
2|30|20|60%
3|5|15|25%

I don't think CHAOSS has documented this metric yet, so I started a conversation at https://github.com/chaoss/wg-evolution/issues/243

Is this supported?
How would I do this in GrimoireLab?