In a recent K=4 admixture experiment, I demonstrated that ADMIXTURE software produces an Amerindian ancestral component that closely tracks the signal of admixture using the D-statistic test. I have decided to make this test available for download and use with DIYDodecad.
The test has four ancestral populations:
For example, the Amerindian component of this test may indicate (i) real recent Native American ancestry, (ii) East Eurasian ancestry found in Siberia and East Asia, (iii) the common signal of admixture differentiating most European groups from Sardinians and Near Eastern Caucasoid groups. Similarly, the Asian component may indicate Australasian, South Asian, or East Eurasian ancestry. And, the European component tracks the ancestry of individuals from West Eurasia in general, although it reaches is maximum in Sardinians.
This test may, however, be useful to Old World individuals who want to get an idea about the signal of admixture discovered by Patterson et al., so I decided to make it available. For individuals who don't suspect recent Amerindian or Siberian/East Asian ancestry, and who don't belong to populations with recent such ancestry, the Amerindian component will most likely represent the aforementioned signal.
You need to extract the contents of the RAR file to the working directory of DIYDodecad. You use it by following exactly the instructions of the DIYDodecad README, but always type 'globe4' instead of 'dv3' in these instructions. You can consult the spreadsheet for proportions of the 4 components in different world populations.