Analyze results from chr20 full-pipeline test run

[gtiao]

From Analysis Google Doc:

• Can look at track length distribution, don’t expect lots of short tracks
• Visualize results, visualize ancestry karyograms, shouldn’t see lots of switches (see Fig 1, supplementary material for Tractor paper)
• Check results against global ancestry estimation (ADMIXTURE)
• Could also check trios within the populations -- could sanity check these