Describe the Task

During the METplus NOAA telecon on 7/12/21, we discovered that the equations for and a description of the statistics in the RPS line type produced by Ensemble-Stat are missing from Appendix C of the MET User's Guide. While Appendix C does describe CRPS, it does not describe RPS or any of the other statistics listed in the Table 11.3.

This task is to update Appendix C to list the equations for and describe the usage of those statistics.

Assigning to both @ericgilleland and @bgbrowntollerud for them to decide who should work on this.

Please ask @JohnHalleyGotway any questions about where/how these stats are computed in the MET code base.

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