Given a table and a target vector, it selects the rows defined in x and calculates the number of rowsums that match or exceed the target. I write -sum because I'll use an implementation that minimises an objective function. -obj_fun(x, table, target) ## [1] 7 So, for the chosen...
DEA定量分析结果表明,农产品第三方物流企业平均目标函数值为0.9759,农产品批发市场目标函数值为0.8284, The agricultural product third party physical distribution pattern has the service function to be perfect; Strategic union's customer relations; Resists the risk together; The profit space is big; ...