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Subkey                   Description                                                                                                                                                                                                                                     
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Variance                 If True, exclude features which have a variance < 0.01. Based on ` sklearn"s VarianceThreshold <https://scikit-learn.org/stable/modules/generated/sklearn.feature_selection.VarianceThreshold.html/>`_.                                         
GroupwiseSearch          Randomly select which feature groups to use. Parameters determined by the SelectFeatGroup config part, see below.                                                                                                                               
SelectFromModel          Select features by first training a LASSO model. The alpha for the LASSO model is randomly generated. See also `sklearn"s SelectFromModel <https://scikit-learn.org/stable/modules/generated/sklearn.feature_selection.SelectFromModel.html/>`_.
UsePCA                   If True, Use Principle Component Analysis (PCA) to select features.                                                                                                                                                                             
PCAType                  Method to select number of components using PCA: Either the number of components that explains 95% of the variance, or use a fixed number of components.95variance                                                                              
StatisticalTestUse       If True, use statistical test to select features.                                                                                                                                                                                               
StatisticalTestMetric    Define the type of statistical test to be used.                                                                                                                                                                                                 
StatisticalTestThreshold Specify a threshold for the p-value threshold used in the statistical test to select features. The first element defines the lower boundary, the other the upper boundary. Random sampling will occur between the boundaries.                   
ReliefUse                If True, use Relief to select features.                                                                                                                                                                                                         
ReliefNN                 Min and max of number of nearest neighbors search range in Relief.                                                                                                                                                                              
ReliefSampleSize         Min and max of sample size search range in Relief.                                                                                                                                                                                              
ReliefDistanceP          Min and max of positive distance search range in Relief.                                                                                                                                                                                        
ReliefNumFeatures        Min and max of number of features that is selected search range in Relief.                                                                                                                                                                      
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