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"""
Contains routines for preprocessing data frames.
"""
from .preprocessor import _Preprocessor
[docs]class EmailDomain(_Preprocessor):
"""
EmailDomain extracts the domain from e-mail addresses.
For instance, if the e-mail address is 'some.guy@domain.com',
the preprocessor will automatically extract '@domain.com'.
The preprocessor will be applied to all :const:`~getml.data.roles.unused_string`.
columns that have the unit "email".
.. code-block:: python
domain = getml.preprocessors.EmailDomain()
pipe = getml.pipeline.Pipeline(
population=population_placeholder,
peripheral=[order_placeholder, trans_placeholder],
preprocessors=[domain],
feature_learners=[feature_learner_1, feature_learner_2],
feature_selectors=feature_selector,
predictors=predictor,
share_selected_features=0.5
)
"""
def __init__(self):
super().__init__()
self.type = "EmailDomain"