LR.inter.cat

name or numeric vector corresponding to the SNP
 tested.

an object of class "formula" : a symbolic
 description of the model to be fitted without the
 interaction term.

formula

a data frame containing the variables in the
 model.

data

name of the variable which is tested in
 interaction with x (x:Z1).

The <code>LR.inter.cat</code> function performs a likelihood
 ratio test (LRT) for an interaction term between a
 categorical variable and a SNP (coded 0,1, 2) in a
 logistic model. The function returns the p-value of the
 likelihood ratio test.

Extension of the 'ARTP' package (Yu, K., et al. (2009) <doi:10.1002/gepi.20422>) for gene- and pathway-environment interaction. A permutation and a parametric bootstrap approaches have been implemented for investigating gene- and pathway-environment interaction analysis (Truong, T., et al. (2014) <doi:10.1530/ERC-14-0121>).

LR.inter.cat: Likelihhod ratio test for an interaction term

Description

Usage

Arguments

Value