Feature extract method - a function to extract value of the feature from the raw data.
Feature extract method - a function to extract value of the feature from the raw data. If the function 'fn' throws an Exception the default
value is returned instead.
a function to extract value of the feature from the raw data
the default value
Feature extract method - a function to extract value of the feature from the raw data.
Feature extract method - a function to extract value of the feature from the raw data.
a function to extract value of the feature from the raw data
feature name
Feature Builder allows building features
input data type
output feature type