PsiCumul (a,b, {x1,x2,…,xn}, {p1,p2,…,pn},...)
PsiCumul (a,b, {x1,x2,…,xn},{p1,p2,…,pn},…) is a custom continuous distribution with lower and upper bounds equal to a and b respectively, and with user specified values , x1,x2,…,xn and corresponding cumulative probabilities p1,p2,…,pn.
