This code tests for parallel lines based on chapter 9 of Hollander, Wolfe, & Chicken, Nonparametric Statistical Methods, 3e.
Usage
sen.adichie(z, example=F, r=3)
Arguments
z
a list of paired vectors. Each item in the list is a set of two paired vectors in the form of a matrix. The first column of each matrix is the x vector, the second in the y vector.
example
if true, analyzes the data from Example 9.5
r
determines the amount of rounding. Increase it if your P-values are coming out as 0 or 1.