Gains chart explanation
Gains Charts. Charts can be displayed on the Gains tab as an alternative to tables. On the Gains tab, select the Quantiles icon (third from left on the toolbar). (Charts are not available for node-by-node or cumulative statistics.) Select the Charts icon. Select the displayed units (percentiles, deciles, and so on) from the drop-down list as desired. Analyzing the Charts: Cumulative gains and lift charts are a graphical representation of the advantage of using a predictive model to choose which customers to contact. The lift chart shows how much more likely we are to receive respondents than if we contact a random sample of customers. Lift and Gain Charts are a useful way of visualizing how good a predictive model is. In SPSS, a typical gain chart appears as follows: In today's post, we will attempt to understand the logic behind generating a gain chart and then discuss how gain and lift charts are interpreted. To do this, we will use the example of a direct mailing company.