Circular-circular regression model with a spike at zero

Article Type

Research Article

Publication Title

Statistics in Medicine

Abstract

With reference to a real data on cataract surgery, we discuss the problem of zero-inflated circular-circular regression when both covariate and response are circular random variables and a large proportion of the responses are zeros. The regression model is proposed, and the estimation procedure for the parameters is discussed. Some relevant test procedures are also suggested. Simulation studies and real data analysis are performed to illustrate the applicability of the model.

First Page

71

Last Page

81

DOI

10.1002/sim.7496

Publication Date

1-15-2018

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