Changed split method for stratified split from adapter, fixes Issue #2

conML/domain/reconstruction/reconstruction.py

@@ -9,6 +9,7 @@ from multiprocessing import Manager
 
 from conML.shared.logger import ReconstructionInfo
 from conML.domain.reconstruction.selection import WinnerSelector
+from conML.ports import split
 
 
 InterimPragmatic = namedtuple("InterimPragmatic", "model, predictions")
@@ -560,16 +561,6 @@ class Reconstructor:
         self.settings.min_reliability = value
 
 
-def split(learnblock, reliability_sample):
-    indices = learnblock.indices()
-    eval_size = int(learnblock.n_rows() * reliability_sample)
-    eval_idx, train_idx = indices[:eval_size], indices[eval_size:]
-    return (
-        learnblock.new_block_from(train_idx, index=True),
-        learnblock.new_block_from(eval_idx, index=True)
-    )
-
-
 def valid_reconstructed(model, knowledge_domain, settings):
     """Test if the trained supersived model fullfills the accuracy criteria.