I have a discrete variable (health status) which takes value from -1.6
to 1. The data consists of pre and post values of the variable. I want
to categorize the variable in 3-7 categories in order to study the
movement between categories . How can I do this? What Criteria should I
use to determine the best categorization, in terms of 1. number of
categories and, 2. cutoffs. Please respond.
Samir
