fillup: Fillup function

In hyper2: The Hyperdirichlet Distribution, Mark 2

Fillup function

Description

Function fillup() concatenates a vector with a ‘fillup’ value to ensure a unit sum; if given a matrix, attaches a column so the rowsums are 1.

Function indep() is the inverse: it removes the final element of a vector, leaving only an independent set.

Usage

fillup(x,total=1)
indep(x)

Arguments

x	Numeric vector
total	Total value for probability

Details

Usually you want the total to be one, to enforce the unit sum constraint. Passing total=0 constrains the sum to be zero. This is useful when considering dp; see the example at gradient.Rd.

Author(s)

Robin K. S. Hankin

See Also

equalp,gradient

Examples

fillup(c(1/2,1/3))

indep(c(1/2,1/3,1/6))

hyper2 documentation built on Aug. 21, 2022, 1:05 a.m.