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Kaiser, Sebastian; Träger, Dominik; Leisch, Friedrich (22. February 2011): Generating Correlated Ordinal Random Values. Department of Statistics: Technical Reports, No.94


Ordinal variables appear in many field of statistical research. Since working with simulated data is an accepted technique to improve models or test results there is a need for providing correlated ordinal random values with certain properties like marginal distribution and correlation structure. The present paper describes two methods for generating such values: binary conversion and a mean mapping approach. The algorithms of the two methods are described and some examples of the outcomes are shown.