featuretools.selection.remove_single_value_features(feature_matrix, features=None, count_nan_as_value=False)[source]#

Removes columns in feature matrix where all the values are the same.

  • feature_matrix (pd.DataFrame) – DataFrame whose columns are feature names and rows are instances.

  • features (list[featuretools.FeatureBase] or list[str], optional) – List of features to select.

  • count_nan_as_value – If True, missing values will be counted as their own unique value. If set to False, a feature that has one unique value and all other data missing will be removed from the feature matrix. Defaults to False.