A link function used in tests gLRT2, gLRT3, and gLRT4

Description

A link function over (0, 1) used in gLRT2, gLRT3, and gLRT4, which is a function of the original link function ξ(x) = x log(x) x^ρ (1 - x)^γ.

Usage

1
Linkfunc(x, rho = 0, gamma = 0)

Arguments

x

a value between 0 and 1

rho

a non-negative parameter in [0, 1]

gamma

a non-negative parameter in [0, 1]

Details

This function η(x) = 1 - ξ(1-x).

Value

Function value is returned.

Note

This is not to be called by the user.

Author(s)

Qiang Zhao and Jianguo Sun

References

X. Zhao, Q. Zhao, J. Sun, Q. and J. S. Kim (2008), "Generalized Log-rank Tests for Partly Interval-Censored Failure Time Data", Biometrical Journal, 50 (3): 375-385.

See Also

LinkfuncDir

Examples

1
Linkfunc(0.2, rho=0, gamma=1)

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