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Now let's build our preprocessing pipelines.
Import BaseEstimator and TransformerMixin from sklearn.base
from << your code goes here >> import << your code goes here >>
Now let's create the Pipeline.
class DataFrameSelector(BaseEstimator, TransformerMixin): def __init__(self, attribute_names): self.attribute_names = attribute_names def fit(self, X, y=None): return self def transform(self, X): return X[self.attribute_names]
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