8000 [MRG] python 3 fix in plot_kmeans_silhouette_analysis.py by lesteve · Pull Request #4266 · scikit-learn/scikit-learn · GitHub
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[MRG] python 3 fix in plot_kmeans_silhouette_analysis.py #4266

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Merged
merged 1 commit into from
Feb 18, 2015
Merged

[MRG] python 3 fix in plot_kmeans_silhouette_analysis.py #4266

merged 1 commit into from
Feb 18, 2015

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lesteve
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@lesteve lesteve commented Feb 18, 2015

To reproduce:

$ ipython --matplotlib -i examples/cluster/plot_kmeans_silhouette_analysis.py

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
/home/lesteve/dev/scikit-learn/examples/cluster/plot_kmeans_silhouette_analysis.py in <module>()
    119     # 2nd Plot showing the actual clusters formed
    120     ax2.scatter(X[:, 0], X[:, 1], marker='.', s=30, lw=0, alpha=0.7,
--> 121                 c=map(cm.spectral, cluster_labels.astype(float) / n_clusters))
    122 
    123     # Labeling the clusters

/home/lesteve/anaconda/envs/sklearn-dev/lib/python3.4/site-packages/matplotlib/axes/_axes.py in scatter(self, x, y, s, c, marker, cmap, norm, vmin, vmax, alpha, linewidths, verts, **kwargs)
   3612                 colors = None  # use cmap, norm after collection is created
   3613             else:
-> 3614                 colors = mcolors.colorConverter.to_rgba_array(c, alpha)
   3615 
   3616         faceted = kwargs.pop('faceted', None)

/home/lesteve/anaconda/envs/sklearn-dev/lib/python3.4/site-packages/matplotlib/colors.py in to_rgba_array(self, c, alpha)
    389         except TypeError:
    390             raise ValueError(
--> 391                 "Cannot convert argument type %s to rgba array" % type(c))
    392         try:
    393             if nc == 0 or c.lower() == 'none':

ValueError: Cannot convert argument type <class 'numpy.ndarray'> to rgba array

@lesteve lesteve force-pushed the python3-fix-plot-kmeans-silhouette-analysis branch from 10edf99 to 7b24628 Compare February 18, 2015 15:26
@ogrisel
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ogrisel commented Feb 18, 2015

Thanks!

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Coverage Status

Coverage remained the same at 95.04% when pulling 7b24628 on lesteve:python3-fix-plot-kmeans-silhouette-analysis into f20ff86 on scikit-learn:master.

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Coverage Status

Coverage remained the same at 95.04% when pulling 7b24628 on lesteve:python3-fix-plot-kmeans-silhouette-analysis into f20ff86 on scikit-learn:master.

ogrisel added a commit that referenced this pull request Feb 18, 2015
@ogrisel
Merge pull request #4266 from lesteve/python3-fix-plot-kmeans-silhoue…
3d86d1f 
…tte-analysis

[MRG] python 3 fix in plot_kmeans_silhouette_analysis.py
@ogrisel ogrisel merged commit 3d86d1f into scikit-learn:master Feb 18, 2015
@lesteve lesteve deleted the python3-fix-plot-kmeans-silhouette-analysis branch February 19, 2015 07:39
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