目录 The average treatment effect Difference-in-means estimation IID Sampling and Population Asymptotics Example: The linear model Regression adjustments with a linear model 随机对照试验(RCT)是统计因果推论
soap消息的分析和消息的创建和传递和处理 @WebService public interface IMyService { @WebResult(name="addResult") public int add(@WebParam(name="a")int a,@WebParam(name="b")int b); @WebResult(name="user") publ