I am using python 2.7 (miniconda) on OSX. Here is my code and the program never run to complete even after 30 minutes. Here is the output, any ideas what is wrong?
Source code,
#!/usr/bin/python
# -*- coding: utf-8 -*-
"""
=========================================================
Logistic Regression 3-class Classifier
=========================================================
Show below is a logistic-regression classifiers decision boundaries on the
`iris <http://en.wikipedia.org/wiki/Iris_flower_data_set>`_ dataset. The
datapoints are colored according to their labels.
"""
print(__doc__)
# Code source: Gaël Varoquaux
# Modified for documentation by Jaques Grobler
# License: BSD 3 clause
import numpy as np
import matplotlib.pyplot as plt
from sklearn import linear_model, datasets
# import some data to play with
iris = datasets.load_iris()
X = iris.data[:, :2] # we only take the first two features.
Y = iris.target
h = .02 # step size in the mesh
logreg = linear_model.LogisticRegression(C=1e5)
# we create an instance of Neighbours Classifier and fit the data.
logreg.fit(X, Y)
# Plot the decision boundary. For that, we will assign a color to each
# point in the mesh [x_min, m_max]x[y_min, y_max].
x_min, x_max = X[:, 0].min() - .5, X[:, 0].max() + .5
y_min, y_max = X[:, 1].min() - .5, X[:, 1].max() + .5
xx, yy = np.meshgrid(np.arange(x_min, x_max, h), np.arange(y_min, y_max, h))
Z = logreg.predict(np.c_[xx.ravel(), yy.ravel()])
# Put the result into a color plot
Z = Z.reshape(xx.shape)
plt.figure(1, figsize=(4, 3))
plt.pcolormesh(xx, yy, Z, cmap=plt.cm.Paired)
# Plot also the training points
plt.scatter(X[:, 0], X[:, 1], c=Y, edgecolors='k', cmap=plt.cm.Paired)
plt.xlabel('Sepal length')
plt.ylabel('Sepal width')
plt.xlim(xx.min(), xx.max())
plt.ylim(yy.min(), yy.max())
plt.xticks(())
plt.yticks(())
plt.show()
Error output,
/Users/foo/miniconda2/lib/python2.7/site-packages/matplotlib/font_manager.py:273: UserWarning: Matplotlib is building the font cache using fc-list. This may take a moment.
warnings.warn('Matplotlib is building the font cache using fc-list. This may take a moment.')
Edit 1, error message after deleting files under ~/.matplotlib/,
/Users/foo/miniconda2/lib/python2.7/site-packages/matplotlib/font_manager.py:273: UserWarning: Matplotlib is building the font cache using fc-list. This may take a moment.
warnings.warn('Matplotlib is building the font cache using fc-list. This may take a moment.')
Traceback (most recent call last):
File "/Users/foo/personal/law/justech/featureExtraction/testLogisticRegression.py", line 22, in <module>
import matplotlib.pyplot as plt
File "/Users/foo/miniconda2/lib/python2.7/site-packages/matplotlib/pyplot.py", line 29, in <module>
import matplotlib.colorbar
File "/Users/foo/miniconda2/lib/python2.7/site-packages/matplotlib/colorbar.py", line 34, in <module>
import matplotlib.collections as collections
File "/Users/foo/miniconda2/lib/python2.7/site-packages/matplotlib/collections.py", line 27, in <module>
import matplotlib.backend_bases as backend_bases
File "/Users/foo/miniconda2/lib/python2.7/site-packages/matplotlib/backend_bases.py", line 62, in <module>
import matplotlib.textpath as textpath
File "/Users/foo/miniconda2/lib/python2.7/site-packages/matplotlib/textpath.py", line 15, in <module>
import matplotlib.font_manager as font_manager
File "/Users/foo/miniconda2/lib/python2.7/site-packages/matplotlib/font_manager.py", line 1421, in <module>
_rebuild()
File "/Users/foo/miniconda2/lib/python2.7/site-packages/matplotlib/font_manager.py", line 1406, in _rebuild
fontManager = FontManager()
File "/Users/foo/miniconda2/lib/python2.7/site-packages/matplotlib/font_manager.py", line 1044, in __init__
self.ttffiles = findSystemFonts(paths) + findSystemFonts()
File "/Users/foo/miniconda2/lib/python2.7/site-packages/matplotlib/font_manager.py", line 324, in findSystemFonts
for f in get_fontconfig_fonts(fontext):
File "/Users/foo/miniconda2/lib/python2.7/site-packages/matplotlib/font_manager.py", line 276, in get_fontconfig_fonts
stderr=subprocess.PIPE)
File "/Users/foo/miniconda2/lib/python2.7/subprocess.py", line 710, in __init__
errread, errwrite)
File "/Users/foo/miniconda2/lib/python2.7/subprocess.py", line 1334, in _execute_child
child_exception = pickle.loads(data)
File "/Users/foo/miniconda2/lib/python2.7/pickle.py", line 1388, in loads
return Unpickler(file).load()
File "/Users/foo/miniconda2/lib/python2.7/pickle.py", line 864, in load
dispatch[key](self)
File "/Users/foo/miniconda2/lib/python2.7/pickle.py", line 886, in load_eof
raise EOFError
EOFError
