Input data for the polysomy method.
Unscaled (A) and scaled (B-D) distributions of BAF values typical for the copy number states 2-4. In (C) we infer that 33% of the cells are aneuploid copy number 3, and in (D) we infer a sample with 20% contamination. The black line is the complete BAF distribution over 0 to 1 of which only part is modelled (shown in red); the green line is the best fit to the red part of the distribution. The model does not include the RR peak and including the AA peak is optional.