tracts.legacy.CompositeDemographicModel

class CompositeDemographicModel(model_function, parameters, proportions_list)

Bases: object

The class of demographic models that account for variance in the number of ancestors of individuals of the underlying population.

Specifically, this is the demographic model constructed by the “multifracs” family of optimization routines.

The expected tract counts per bin in the composite demographic model is simply a component-wise sum of the expected tract counts per bin across the component demographic models.

The log-likelihood of the composite demographic model is the computed based on the combined expected tract counts per bin.