class_docstr: Column centering of vectors and matrices.
  
  Attributes
  -----------
  col_means : numpy.ndarray [n_columns]
      NumPy array storing the mean values for centering after fitting
      the MeanCenterer object.
  
  Examples
  -----------
  For usage examples, please see
  https://rasbt.github.io/mlxtend/user_guide/preprocessing/MeanCenterer/
code: def __init__(self):
      pass
  
file_path: mlxtend/mlxtend/preprocessing/mean_centering.py
imports: import numpy
label_desc: Use image node_id 1 to create a new MeanCenterer object from inherited base classes: object with example: obj = MeanCenterer()