update_pp_f1 when one parent only has
two mixing components.Objective function when doing Brent's method in
update_pp_f1 when one parent only has
two mixing components.
pp_brent_obj(firstmixweight, probmat, pvec, weight_vec, alpha)The mixing weight of the first component.
The rows index the components and the columns index the segregation amount. Should only have two rows.
The distribution of the other parent.
The weights for each element.
The mixing weight on the uniform component.
The objective value, as calculated by taking a
    convolution using convolve_up of the mixing
    distribution and pvec, then putting that
    probability distribution through f1_obj.