hi Andy, is your graph fully connected? ie one connected compotent? if not you should tell the estimator.
let me know if it works. Alex On Tue, Mar 12, 2013 at 3:16 PM, Andreas Mueller <[email protected]> wrote: > Hey everybody. > I have been trying to use Ward with a fixed connectivity matrix today > and ran into some problems: > > File "/home/VI/staff/amueller/checkout/scikit-learn/sklearn/base.py", > line 330, in fit_predict > self.fit(X) > File > "/home/VI/staff/amueller/checkout/scikit-learn/sklearn/cluster/hierarchical.py", > line 380, in fit > copy=self.copy, n_clusters=n_clusters) > File > "/home/VI/staff/amueller/checkout/scikit-learn/sklearn/cluster/hierarchical.py", > line 165, in ward_tree > inert, i, j = heappop(inertia) > IndexError: index out of range > > I checked and the number of nodes is the same as the number of samples > during fit. > Is there some assumption about the graph that I could be missing? > I see this error only for "low" number of clusters. If I increase > n_clusters, > it goes away. > > > Any help would be much appreciated. > > Cheers, > Andy > > ------------------------------------------------------------------------------ > Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester > Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the > endpoint security space. For insight on selecting the right partner to > tackle endpoint security challenges, access the full report. > http://p.sf.net/sfu/symantec-dev2dev > _______________________________________________ > Scikit-learn-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/scikit-learn-general ------------------------------------------------------------------------------ Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the endpoint security space. For insight on selecting the right partner to tackle endpoint security challenges, access the full report. http://p.sf.net/sfu/symantec-dev2dev _______________________________________________ Scikit-learn-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
