experimenting with marginalization

I wanted to see if you could check that distribution A is
B|c marginalized over C, by monte carlo generating C and then
B|c values, and doing a qq plot with monte carlo generated A
values. It turned out not to work so well because you can only test
one set of shape parameters for B and C at a time. What if C is a
t distribution? You gonna try ever possible df?
merged changes