public static object Calculate <T>(IEnumerable <T> source, Func <T, object> selector)
{
var summator = new SumAggregator <object>(new IdentityAccessor());
foreach (var i in source.Select(selector))
{
summator.Step(i, null);
}
return(summator.Finish());
}
public AvgAggregator(IAccessor <T> accessor)
: base(accessor)
{
_counter = new CountAggregator <T>(accessor, true);
_summator = new SumAggregator <T>(accessor);
}
public AvgAggregator(IAccessor <T> accessor, Aggregator <T> counter)
: base(accessor)
{
_counter = counter;
_summator = new SumAggregator <T>(accessor);
}
public RemoteAvgAggregator(IAccessor <T> accessor)
: base(accessor)
{
_countAggregator = new SumAggregator <T>(accessor);
_valueAggregator = new SumAggregator <T>(accessor);
}