character for the reference group for
  treatment group.

This is a special function used in the context of
  <code><a href="/link/sanon?package=sanon&version=1.2" rd-options="" data-mini-rdoc="sanon::sanon">sanon</a></code>. It identifies group variables when
  they appear on the right hand side of a formula.

This package has several functions to implement the method for analysis in a randomized clinical trial with strata with following key features. A stratified Mann-Whitney estimator addresses the comparison between two randomized groups for a strictly ordinal response variable. The multivariate vector of such stratified Mann-Whitney estimators for multivariate response variables can be considered for one or more response variables such as in repeated measurements and these can have missing completely at random (MCAR) data. Non-parametric covariance adjustment is also considered with the minimal assumption of randomization. The p-value for hypothesis test and confidence interval are provided.

grp: Identify Group Variables

Description

Usage

Arguments