Likelihoodfun: Calculating log-Likelihood Function

In XHWE: X Chromosome Hardy-Weinberg Equilibrium

Description

Calculate the natural logarithm of the likelihood function.

Usage

Likelihoodfun(p1m, p2f, p1f, n1m, n0m, n2f, n1f, n0f)

Arguments

p1m	The male allele frequency of allele 1.
p2f	The female genotype frequency of genotype (1, 1).
p1f	The female genotype frequency of genotype (1, 2).
n1m	The number of males with allele 1.
n0m	The number of males with allele 2.
n2f	The number of females with genotype (1, 1).
n1f	The number of females with genotype (1, 2).
n0f	The number of females with genotype (2, 2).

Details

The values of p1m, p2f and p1f should be from 0 to 1, otherwise NaN is presented.

Value

The function returns the value of the natural logarithm of the likelihood function.

Author(s)

Xiao-Ping You, Qi-Lei Zou, Jian-Long Li, Ji-Yuan Zhou

References

You XP, Zou QL, Li JL, Zhou JY. 2015 Likelihood Ratio Tests for Hardy-Weinberg Equilibrium at Marker Loci on X Chromosome. (submitted)

Zheng G, Joo J, Zhang C, Geller NL. 2007 Testing Association for Markers on the X Chromosome. Genetic Epidemiology, 31: 834-843.

Dempster AP, Laird NM, Rubin DB. 1977 Maximum Likelihood from Incomplete Data via the EM algorithm. Journal of the Royal Statistical Society Series B(Methodological), 39: 1-38.

See Also

XHWE, ped, emf, result, emc.

XHWE documentation built on May 2, 2019, 6:44 a.m.