when i add a commit (ianfhunter@ada0717) to actually execute the unittest, it fails:

Numpy Version: 1.14.1
Nose Version: 1.3.7

$ python3 ckmeans_test.py

[6.05700724 2.99513288 0. ]
.[0. 0. 2.]
.[4.84676140e-27 3.36949153e+01 9.77107099e-24 1.57746479e+01
3.38461538e+01 4.32000000e+01 3.77387755e+02 1.39285714e+01
2.11421053e+02 0.00000000e+00]
F

FAIL: test_guess_k (main.TestCkmeans)

Traceback (most recent call last):
File "ckmeans_test.py", line 82, in test_guess_k
self.run_test('guess_k')
File "ckmeans_test.py", line 76, in run_test
self.compare_results(my_result, r_result)
File "ckmeans_test.py", line 52, in compare_results
np.asarray(r_result.rx2('cluster')) - 1
File "ckmeans_test.py", line 46, in assertArraysEqual
np.testing.assert_allclose(array1, array2, *args, **kwargs, err_msg=label, verbose=True)
File "/home/ian/.local/lib/python3.6/site-packages/numpy/testing/nose_tools/utils.py", line 1396, in assert_allclose
verbose=verbose, header=header, equal_nan=equal_nan)
File "/home/ian/.local/lib/python3.6/site-packages/numpy/testing/nose_tools/utils.py", line 779, in assert_array_compare
raise AssertionError(msg)
AssertionError:
Not equal to tolerance rtol=1e-07, atol=0
clustering
(mismatch 23.95833333333333%)
x: array([0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,...
y: array([0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,...

---

Ran 3 tests in 0.116s

FAILED (failures=1)