Description Usage Arguments Value Author(s)

One degree of freedom Chi-squared test of allelic counts

1 | ```
chi2(Xa, Y)
``` |

`Xa` |
A matrix of genotype values coded as 0, 1 or 2 for homozygous major, heterozygous, or homozygous minor, respectively. Rows are subjects and columns are SNPs. May be created with method as.double.snp.data from the GenABEL package. |

`Y` |
A vector of disease phenotypes, diseased = 1, non-diseased = 0 |

This function returns a vector of chi-squared, one degree of freedom, statistics for the allelic test of association. The length of this vector is the number of SNPs.

Samuel G. Younkin

ldlasso documentation built on May 30, 2017, 3:05 a.m.

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