gap (version 1.5-1)

muvar: 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),
  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.

Arguments

n.loci

number of loci, 1=single locus, 2=two loci.

y1

the genotypic means of aa, Aa and AA.

y12

the genotypic means of aa, Aa and AA at the first locus and bb, Bb and BB at the second locus.

p1

the frequency of the lower allele, or the that for the first locus under a 2-locus model.

p2

the frequency of the lower allele at the second locus.

Author

Jing Hua Zhao

References

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

Examples

if (FALSE) {
# 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)
}