I got an error by exporting the classification tree to graphviz and i
don't know how to handle
Traceback (most recent call last):
File "task5.py", line 101, in <module>
f = tree.export_graphviz(clf_1,out_file=f)
File "C:\Python27\lib\site-packages\sklearn\tree\tree.py", line
_graphviz
recurse(decision_tree.tree_, 0)
File "C:\Python27\lib\site-packages\sklearn\tree\tree.py", line
e
left_child = tree.children_left[node_id]
AttributeError: 'NoneType' object has no attribute 'children_left'
It works with other problems but into this case, i don't know.
Code Snip:
from StringIO import StringIO
with open("task5_tree.dot", 'w') as f:
f = tree.export_graphviz(clf_1,out_file=f)
best regards
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