by Brit Nicholson | Dec 28, 2020 | DNA Code

I’ve written two Python algorithms that I describe in this article. The algorithm below works for downloaded segment-level match files from GEDmatch. The other algorithm, found here, is for match files downloaded from MyHeritage. import csv import pandas as pd...
by Brit Nicholson | Oct 23, 2020 | Blog, Probability and Statistics

A formula to improve your ability to estimate 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...
by Brit Nicholson | 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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