Feature Selection Model Results
The Model tab for a Feature Selection model nugget displays the rank and importance of all inputs in the upper pane and enables you to select fields for filtering by using the check boxes in the column on the left. When you run the stream, only the selected fields are preserved; the other fields are discarded. The default selections are based on the options specified in the model-building node, but you can select or deselect additional fields as needed.
The lower pane lists inputs that have been excluded from the rankings based on the percentage of missing values or on other criteria specified in the modeling node. As with the ranked fields, you can choose to include or discard these fields by using the check boxes in the column on the left. See the topic Feature Selection Model Settings for more information.
- To sort the list by rank, field name, importance, or any of the other displayed columns, click on the column header. Or, to use the toolbar, select the desired item from the Sort By list, and use the up and down arrows to change the direction of the sort.
- You can use the toolbar to check or uncheck all fields and to access the Check Fields dialog box, which enables you to select fields by rank or importance. You can also press the Shift and Ctrl keys while clicking on fields to extend the selection and use the spacebar to toggle on or off a group of selected fields. See the topic Selecting Fields by Importance for more information.
- The threshold values for ranking inputs as important, marginal, or unimportant are displayed in the legend below the table. These values are specified in the modeling node. See the topic Feature Selection Options for more information.