cutoffs {netgwas}R Documentation

Cut-points

Description

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

Usage

cutoffs(y)

Arguments

y

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

Details

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

Value

cutoffs

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

Author(s)

Pariya Behrouzi and Ernst C. Wit
Maintainer: Pariya Behrouzi <pariya.behrouzi@gmail.com>

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)

[Package netgwas version 1.14.3 Index]