class_docstr: Base N logarithm transform.
class_docstr_tok: ["Base","N","logarithm","transform","."]
code: def transform(self, X):
      return np.log10(np.asarray(X, dtype=float)) / np.log10(self._base)
  
imports: from __future__ import division
  import numpy
  from sklearn.preprocessing import LabelBinarizer
  from sklearn.utils import column_or_1d
label_desc: Use image node_id 2 for calling the LogN obj's underlying member method code with example usage: obj.transform(X) and returns: unknown