See Calculating the Mean Opportunity Score in the Tutorial. pingtable.pl should be enhanced to add MOS as a selectable metric. The new code will need to be plugged into both the SLAC and SEECS versions.
Also add alpha (see the Tutorial) and max_RTT (as an aid for exposing buffer bloat).
We wrote a script wrapper-for-hourly.pl to analyze the gathered raw ping data from the monitoring hosts and create the hourly aggregated data. It enables one to select the metrics to be calculated, the time frame, the ping size and the host or site.
This was typically run as a batch job with the output shown here.