SummaryCov-class: Class "SummaryCov" - summary of "Cov" objects
Description
The "Cov" object plus some additional summary informationObjects from the Class
Objects can be created by calls of the form new("SummaryCov", ...)
,
but most often by invoking 'summary' on a "Cov" object. They contain values
meant for printing by 'show'.