Variableselectiongui

Introduction

The Variable Selection panel contains an interface to several methods for selected subsets of variables in an effort to improve predictions when compared to using all variables. When a method is selected the optional parameters for the method are displayed. If the "Show All Options" checkbox is selected then all available options will be displayed. If it is not selected then less critical options will be hidden.

Methods

• Automatic (VIP or sRatio)
• GA - Genetic Algorithm
• iPLS - Interval PLS
• rPLS - Recursive PLS
• sRatio - Selectivity Ratio
• VIP - Variable Importance in Projection

Work Flow

• Select a Method - If
• Adjust Options - By default, a simplified set of options are displayed. If the "Show All Options" checkbox is selected then all available options will be displayed. Depending on the options set, a particular method can take an extended amount of time to complete. For example, decreasing the window width in GA will increase the amount of time it takes to complete. See documentation for more details on optional settings.
• Run Variable Selection - Clicking the "Execute" button will run the current variable selection method with values specified in the options. A waitbar will be displayed indicating the method is running. Some methods will display a waitbar with a message indicating it can be closed to cancel execution. NOTE: It can take some time for the method to finish a calculation loop and identify the user has canceled.