Uplift Report Options
The Uplift model is a specific implementation of a partition model. With the exception of the options described below, the red triangle options for the Uplift report are described in “Partition Models” in Predictive and Specialized Modeling.
Minimum Size Split
This option presents a window where you enter a number or a fractional portion of the total sample size to define the minimum size split allowed. To specify a number, enter a value greater than or equal to 1. To specify a fraction of the sample size, enter a value less than 1. The default value for the Uplift platform is set to 25 or the floor of the number of rows divided by 2,000, whichever value is greater.
Column Uplift Contributions
This table and plot address a column’s contribution to the uplift tree structure. A column’s contribution is computed as the sum of the F Ratio values associated with its splits. Recall that these values measure the significance of the treatment-by-split interaction term in the regression model.
Uplift Graph
The uplift graph displays the difference in response rates between the treatment and control groups for the final leaves in the uplift partition model. The uplift, or difference in response rates, is plotted on the vertical axis. The horizontal axis corresponds to the portion of observations in each of final splits of the partition model, arranged by magnitude of lift. When validation is used, a black horizontal line shows the validation response for each node. When the uplift graph is open, as nodes are split, the graph updates to show the additional terminal.
Save Columns
Save Difference
Saves the estimated difference in mean responses across levels of Treatment for the observation’s node. This is the estimated uplift.
Save Difference Formula
Saves the formula for the Difference, or uplift.
Publish Difference Formula
Creates the difference formula and saves it as a formula column script in the Formula Depot platform. If a Formula Depot report is not open, this option creates a Formula Depot report. See “Formula Depot” inPredictive and Specialized Modeling.