- i need help learning how to make an R function that performs the Gehan test for the large-sample approximation.

-Function should return an object that contains the test statistic, the p-value, and the

method.

-The print method should output: the name of the test (Gehan), the method used, the test

statistic, and the p-value.

- Comment your code. Including a description of the function(s), the type and format of

the arguments, and a description of the values returned. Your comments should act like

a manual for how to use the function. Also include comments in the body of the

function that describe what is going on.