Circular‐circular regression model with a spike at zero
Copyright policy )Circular‐circular regression model with a spike at zero
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.
von Mises distribution, Models, Statistical, Möbius transformation, Astigmatism, Cataract Extraction, Biostatistics, Applications of statistics to biology and medical sciences; meta analysis, wrapped Cauchy distribution, Data Interpretation, Statistical, Humans, Regression Analysis, Computer Simulation, Poisson Distribution, EM algorithm
von Mises distribution, Models, Statistical, Möbius transformation, Astigmatism, Cataract Extraction, Biostatistics, Applications of statistics to biology and medical sciences; meta analysis, wrapped Cauchy distribution, Data Interpretation, Statistical, Humans, Regression Analysis, Computer Simulation, Poisson Distribution, EM algorithm
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