Louis Kessler’s Behold Blog     The Behold User Forum

The lack of information is possible, but I think unlikely. I have complete information back 5 generations, except for three ancestors who are all in Switzerland, and none of the three matches I am thinking of have anyone near Switzerland. At least two of my matches have similar completeness of records. So ...

You have been dancing around the phrase "conditional probability", which is the big distinction between looking at data before and after the filter is applied. There is another conditional probability issue that arises because peoples match lists are sorted -- regression to the mean, i.e., the regression ...