This is the R function for adptive Lasso of zero-inflated Poisson (ZIP) and zero-inflated negative binomial (ZINB).
Ping Zeng, Yongyue Wei, Yang Zhao, Jin Liu, Liya Liu, Ruyang Zhang, Jianwei Gou, Shuiping Huang and Feng Chen (2014). Variable selection approach for zero-inflated count data via adaptive lasso. Journal of Applied Statistics, 41(4): 879-894. Doi:10.1080/02664763.2013.858672.
I am very grateful to any questions, comments, or bugs reports; and please contact Ping Zeng via [email protected] or [email protected].