Hans Dembinski c8b8c4d502
Fix accumulator issues (#72)
* add weighted_mean::sum_of_weights_squared
* sum of default constructed mean and weighted_mean is now equal to default constructed object
* thread-safe returns a reference to self in operators just like the other accumulators
2019-10-26 11:12:29 +02:00
..
2019-10-26 11:12:29 +02:00
2019-10-12 15:12:53 +02:00