stdErr.4p {vitality}

Standard errors for 4-parameters: r, s, lambda, beta

Description

Gives the standard errors for the 4 parameter model. Primarily used within vitality.4p.

Usage

  stdErr.4p(r, s, k, u, x1, x2, Ni, pop)

Arguments

r

r value

s

s value

k

lambda value

u

beta value

x1

age 1 (corresponding 1:(t-1) and 2:t)

x2

age 2

Ni

survival fraction

pop

initial population (total population of the study)

Value

standard error for r, s, lambda, beta

Note

if k <= 0, cannot find standard error for k

See Also

vitality.4p