I'm referring to the software ADMIXTURE by DH Alexander. I want to use -B option of ADMIXTURE 1.3.0 to calculate confidence intervals for admixture proportions. The results include a .Q_se file (I assume “se” stands for standard error) and .Q_bias. However, I cannot find the meaning of .Q_bias in all three papers on ADMIXTURE or the latest software manual.
What is the meaning of .Q_bias?