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"""
Test functions for models.rlm
"""
import numpy.random as R
from numpy.testing import NumpyTest, NumpyTestCase
import scipy.sandbox.models.rlm as models
W = R.standard_normal
class test_Regression(NumpyTestCase):
def test_Robust(self):
X = W((40,10))
Y = W((40,))
model = models(design=X)
results = model.fit(Y)
self.assertEquals(results.df_resid, 30)
def test_Robustdegenerate(self):
X = W((40,10))
X[:,0] = X[:,1] + X[:,2]
Y = W((40,))
model = models(design=X)
results = model.fit(Y)
self.assertEquals(results.df_resid, 31)
if __name__ == "__main__":
NumpyTest().run()
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