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. |
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