R: Means and variances under 1- and 2- locus (biallelic) QTL...

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.

### 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

### Details

    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)

### 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 1.2.1 Index]