LogTransformer.py

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from ._CustomTransformer import _CustomTransformer
 
import numpy as np 
 
 
class LogTransformer(_CustomTransformer):
    ''' Transform into log domain '''
    def _transform(self, X, *args, **kwargs):         return np.log(X)
    def _inverse_transform(self, X, *args, **kwargs): return np.exp(X)