by DNA-Sci | Sep 6, 2023 | Blog, DNA Science, Probability and Statistics
An analysis of whether or not the longest segment should be included in relationship predictions In February of 2023 a new tool called SegcM redefined the way genetic genealogists get their relationship predictions. SegcM uses the number of segments along with total...
by DNA-Sci | Apr 3, 2023 | Blog, DNA Science, Probability and Statistics
Key to understanding how new relationship predictors perform is an understanding of how probabilities work One time I was sitting and waiting for class to begin in one of many advanced statistics courses I took. The professor entered and started class with something...
by DNA-Sci | Oct 23, 2020 | Blog, DNA Science, Probability and Statistics
A formula to improve the estimation of the genetic relationship between two parents GEDmatch has had a tool called “Are Your Parents Related” (AYPR) for a few years now. The tool is helpful and easy to use. Some have argued that this information shouldn’t be...
by DNA-Sci | Sep 29, 2020 | Blog, Probability and Statistics
What’s the probability that two children share one whole copy of the X chromosome without sharing a father? I’ve made an X chromosome model that predicts shared X DNA percentages and ranges for various ancestors, but I haven’t yet calculated ranges...
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