标题: 求助：zip (zero-inflated poisson)model on data with correlation [打印本页] 作者: shiyiming 时间: 2009-7-11 23:23 标题: 求助：zip (zero-inflated poisson)model on data with correlation Does anyone have experience on fiting zip based data using SAS? The data is time series and ideally I want to use GEE method to deal with the correlation.