The LR.inter.cont function performs a Wald test
for an interaction term between a continuous variable and
a SNP. The function returns the p-value of the Wald test.
LR.inter.cont(x, formula, data, Z1)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
a data frame containing the variables in the model
name of the variable which is tested in interaction with x (x:Z1)
pvalue of the Wald test for the interaction term