muvar {gap}R Documentation

Means and variances under 1- and 2- locus (biallelic) QTL model

Description

Function muvar() gives means and variances under 1-locus and 2-locus QTL model (simple); in the latter case it gives results from different avenues. This function is included for experimental purpose and yet to be generalized.

Usage

muvar(n.loci=1,y1=c(0,1,1),p1=0.5)
muvar(n.loci=2,y12=c(1,1,1,1,1,0,0,0,0),p1=0.99,p2=0.9)

Arguments

n.loci number of loci, 1=single locus, 2=two loci
y1 the genotypic means of aa, Aa and AA
p1 the frequency of the lower allele, or the that for the first locus under a 2-locus model
y12 the genotypic means of aa, Aa and AA at the first locus and bb, Bb and BB at the second locus
p2 the frequency of the lower allele at the second locus

Value

Currently it does not return any value except screen output; the results can be kept via R's sink() command or via modifying the C/R codes.

References

Sham P (1998). Statistics in Human Genetics. Arnold

Note

Adapted from an earlier C program written for the above book

Author(s)

Jing Hua Zhao

Examples

## Not run: 
# the default 1-locus model
muvar(n.loci=1,y1=c(0,1,1),p1=0.5)

# the default 2-locus model
muvar(n.loci=2,y12=c(1,1,1,1,1,0,0,0,0),p1=0.99,p2=0.9)
## End(Not run)

[Package gap version 1.0-17 Index]