cutoffs {netgwas}

Cut-points

Description

Calculates cut-points of ordinal variables with respect to the Gaussian copula.

Usage

cutoffs(y)

Arguments

y

An (n \times p) matrix or a data.frame corresponding to the data matrix (n is the sample size and p is the number of variables). It also could be an object of class "simgeno".

Details

The relationship between jth variable and jth latent variable is expressed through this set of cut-points.

Value

cutoffs

A p by (k + 1) matrix representing the cut-point values under the Gaussian copula, where k defines the number of categories in the dataset.

Author(s)

Pariya Behrouzi and Ernst C. Wit
Maintainer: Pariya Behrouzi <[e-mail]>

References

1. Behrouzi, P., and Wit, E. C. (2019). Detecting epistatic selection with partially observed genotype data by using copula graphical models. Journal of the Royal Statistical Society: Series C (Applied Statistics), 68(1), 141-160.
2. Behrouzi, P., and Wit, E. C. (2018). De novo construction of polyploid linkage maps using discrete graphical models. Bioinformatics.
3. Behrouzi, P., and Wit, E. C. (2017c). netgwas: An R Package for Network-Based Genome-Wide Association Studies. arXiv preprint, arXiv:1710.01236.

See Also

lower.upper, simgeno and netgwas-package.

Examples

	D <- simgeno(p = 100, n = 50, k = 3)
	cutoffs(D$data)