Look up: Top-coded

1. 
   top-coded
   For data recorded in groups, e.g. 0-20, 21-50, 50-100, 101-and-up, we do not know the average or distribution of the top category, just its lower bound and quantity. That data is 'top-coded.' We may adjust for it by scaling up the top-code and calling that the average. Contexts: data
   Found on http://www.econterms.com/glossary.cgi?qu
   
   
2. 
   Top-coded
   In econometrics and statistics, a `top coded` dataset is one for which the upper bound is not known. This is often done to preserve the anonymity of people participating in the survey (for example, if a survey included a person with wealth of $51 billion, it would not be anonymous because people would know it is Bill Gates).
   Found on http://en.wikipedia.org/wiki/Top-coded