public static StatisticsSubjectPerYear <T> Aggregate(IEnumerable <StatisticsSubjectPerYear <T> > statistics)
{
if (statistics is null)
{
return(new StatisticsSubjectPerYear <T>());
}
var aggregatedStatistics = new StatisticsSubjectPerYear <T>(
$"aggregated for {statistics.FirstOrDefault().ICO}",
StatisticsPerYear <T> .AggregateStats(statistics));
return(aggregatedStatistics);
}
public static StatisticsPerYear <T> AggregateStats <T>(this IEnumerable <StatisticsPerYear <T> > statistics, int[] onlyYears = null)
where T : CoreStat, IAddable <T>, new()
{
return(StatisticsPerYear <T> .AggregateStats(statistics, onlyYears));
}