AttributeError: 'NoneType' object has no attribute 'labels_'

[adriana2903]

When I run the script called 'ch7_portfolio_construction' I get the following error:

AttributeError Traceback (most recent call last)
in
39 cov1 = pd.DataFrame(cov1, index=cols, columns=cols)
40 corr1 = mp.cov2corr(cov1)
---> 41 corr1, clstrs, silh = oc.clusterKMeansBase(pd.DataFrame(corr0))
42
43 # # code snippet 7.4 - intracluster optimal allocations

D:\User\Desktop\ch4_optimal_clustering.py in clusterKMeansBase(corr0, maxNumClusters, n_init, debug)
56 print("********")
57
---> 58 newIdx = np.argsort(kmeans.labels_)
59 #print(newIdx)
60

AttributeError: 'NoneType' object has no attribute 'labels_'

Can you please help me to fix this bug? Thank you!

[emoen]

This is because min number of clusters was set to 4 in ch4_optimal_clustering.py in clusterKMeansBase, but it should be 2. I have updated this in this commit: 5acb8a5