Sample construction settings

You change these settings to affect the Sample construction step of the predictive model configuration process that is described in Constructing a sample. The settings include the names of the sections that are displayed for the step and the default values for particular options.

Setting	Description
Sampling method
Uniform sampling	Create a sample with cases of equal probability that are randomly selected from the data source. You can set the sample size using percentage or number of cases.
Stratified sampling	Create a sample using a different probability for each value of a selected field.
Validation	Set the percentage of cases retained for data set validation and testing.