class_docstr: Active dataset for numpy arrays. Useful when using sklearn.
  
  Args:
      dataset (Tuple[ndarray, ndarray]): [Train x, train y], The dataset.
      labelled (Union[np.ndarray, torch.Tensor]):
          An array/tensor that acts as a boolean mask which is True for every
          data point that is labelled, and False for every data point that is not
          labelled.
      random_state: Random seed for the ActiveLearningDataset
class_docstr_tok: ["Active","dataset","for","numpy","arrays",".","Useful","when","using","sklearn",".","Args",":","dataset","(","Tuple","[","ndarray",",","ndarray","]",")",":","[","Train","x",",","train","y","]",",","The","dataset",".","labelled","(","Union","[","np.ndarray",",","torch.Tensor","]",")",":","An","array\/tensor","that","acts","as","a","boolean","mask","which","is","True","for","every","data","point","that","is","labelled",",","and","False","for","every","data","point","that","is","not","labelled",".","random_state",":","Random","seed","for","the","ActiveLearningDataset"]
docstr: Return the unlabelled portion of the dataset.
docstr_tok: ["Return","the","unlabelled","portion","of","the","dataset","."]
code: def pool(self):
      """Return the unlabelled portion of the dataset."""
      return (
          self._dataset[0][~self.labelled],
          self._dataset[1][~self.labelled],
      )
  
file_path: baal/baal/active/dataset/numpy.py
imports: from itertools import zip_longest
  from typing import Tuple, Optional, Any, Union
  import numpy
  from baal.active.dataset.base import SplittedDataset
label_desc: Use image node_id 2 for calling the ActiveNumpyArray obj's underlying member method code with example usage: obj.pool() and returns: self,  self