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[FIX] Handle KeyError Sieve Diagram widget (owsieve) when one row #2007

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Feb 13, 2017
Merged

[FIX] Handle KeyError Sieve Diagram widget (owsieve) when one row #2007

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2 changes: 1 addition & 1 deletion Orange/widgets/visualize/owsieve.py
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Original file line number Diff line number Diff line change
Expand Up @@ -168,7 +168,7 @@ def set_data(self, data):
self.domain_model.set_domain(data.domain)
if any(attr.is_continuous for attr in data.domain):
discretizer = Discretize(
method=EqualFreq(n=4),
method=EqualFreq(n=4),remove_const=False,
discretize_classes=True, discretize_metas=True)
self.discrete_data = discretizer(data)
else:
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9 changes: 9 additions & 0 deletions Orange/widgets/visualize/tests/test_owsieve.py
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Expand Up @@ -37,3 +37,12 @@ def test_missing_values(self):
X = np.array([1, 2, 0, 1, 0, 2])[:, None]
data = Table(Domain(attrs, class_var), X, np.array([np.nan] * 6))
self.send_signal("Data", data)

def test_keyerror(self):
"""gh-2007
Check if it works when a table has only one row or duplicates.
Discretizer must have remove_const set to False.
"""
data = Table("iris")
data = data[0:1]
self.send_signal("Data", data)