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For a brief description, see Test Metrics for Classification Models.
The Lift graph displays at least three lines: a line showing lift for each model, a red line for the random model, and a vertical blue line for threshold.
The Lift viewer compares lift results for a given target value in two or more models.The Lift viewer displays either Cumulative Positive Cases and Cumulative Lift.
If you are comparing lift for two or more models, the lines for different models are different colors. The table below the graph shows the name of the model and the color used to display results for that model.
The viewer has the following controls:
Display selects the display option, either Cumulative Positive Cases (the default) or Cumulative Lift.
Target Value selects the target value for comparison. The default target value is the least frequently occurring target value.
The x-axis of the graph is divided into quantiles.
The graph shows the lift from the model (or models) and also shows the lift from a naive model (Random) and the ideal lift.
The threshold is a blue vertical line used to select a quantile. As the threshold moves, the details for each test result in the lift detail table changes to the point on the lift chart that corresponds to the selected quantile. You move the threshold by dragging the indicator on the quantile line. Here is the quantile set to 20:
Below the graph, a data table supplements the information presented in the graph. You can minimize the table using the splitter line.
The table has the following columns:
Name, the name of the model along with color of the model in the graph
Lift Cumulative
Gain Cumulative Percent
Percentage Records Cumulative
Target Density Cumulative
Algorithm
Creation Date (date and time)
Above the Models grid is the Lift Detail Dialog icon
Select a model and click the icon to launch the Lift Detail Dialog, which displays lift details for 100 quantiles.
By default, results for all models in the node are displayed. To change the list of models, click
and deselect any models for which you do not want to see results. If you deselect a model, both the lift curve and the detail information for that model are not displayed.