摘要：For the issue of the lack in plotting analysis method in the research of DEA, this paper introduces a new graphic method—Co-Plot. It can demonstrate DMUs and variables visually in two-dimensional space, and enable the analysis of them at the same time. By applying the ratio relationship among variables, Co-Plot can be combined with DEA in a way to display the results of DEA easily and intuitively. Specific steps for graphing by Co-Plot are given, and the effectiveness of the method is proved through an illustration of commercial banks.
