conduct backward stepwise variable elimination for zero inflated count regression from zeroinfl function
be.zeroinfl(object, data, dist=c("poisson", "negbin", "geometric"), alpha=0.05,
trace=FALSE)an object of zeroinfl with all variables having p-values less than the significance level alpha
an object from function zeroinfl
argument controlling formula processing
via model.frame.
one of the distributions in zeroinfl function
significance level of variable elimination
logical value, if TRUE, print detailed calculation results
Zhu Wang <zwang145@uthsc.edu>
conduct backward stepwise variable elimination for zero inflated count regression from zeroinfl function
Zhu Wang, Shuangge Ma, Ching-Yun Wang, Michael Zappitelli, Prasad Devarajan and Chirag R. Parikh (2014) EM for Regularized Zero Inflated Regression Models with Applications to Postoperative Morbidity after Cardiac Surgery in Children, Statistics in Medicine. 33(29):5192-208.
Zhu Wang, Shuangge Ma and Ching-Yun Wang (2015) Variable selection for zero-inflated and overdispersed data with application to health care demand in Germany, Biometrical Journal. 57(5):867-84.