Daniel Tabin
@DanTabin • 3,349 subscribers
DNA and History fan
Videos
Are Neanderthals closer to West Africans than Europeans? Were the ANE a mix of European and Native American ancestry? No and no, but why do some PCAs show things like this? Find out in part 7 in my popgen video series. I'm covering Drift, PCs, projection G25 and more!
Daniel Tabin33,142 görüntüleme • 6 ay önce
FST tells us that at most 15% of the information about someone's genome is explained by population structure, so how do PCA's distinguish populations with FST << 0.15? What is the relationship between FST and "variance explained" in PCA? Both answer and more in popgen video #8
Daniel Tabin18,584 görüntüleme • 6 ay önce
How does one tell if some population A is closer to population B or C? The f4-statistic has you covered! In the 9th part of my popgen and aDNA methods series, we cover the basic intuition behind an f4-statistic and how it can be used to learn about relatedness and history.
Daniel Tabin16,802 görüntüleme • 6 ay önce
Genetic data is often on the order of 1-million-Dimensional. How on earth does one visualize this? PCA! In my sixth popgen / ancient DNA video, I give a (very) high level intuition for what PCAs are doing and how we can use them to reduce them dimensions of genetic data
Daniel Tabin17,156 görüntüleme • 6 ay önce
Part 4 in my population genetics video continuing on FST. In this video I give examples of why you should think of FST as differentiability, not distance, then relate it to heterozygosity and variance before giving an intuition of what an FST of, for example, 0.03 means
Daniel Tabin11,780 görüntüleme • 7 ay önce
Daha fazla içerik yok.