I'm having a hard time trying to plot histograms using python, numpy and matplotlib on a mac osx. I had this working perfectly 6 months ago however the same code produces this error:
In [1]: %matplotlib inline
In [2]:import numpy as np
from numpy.random import randn
import pandas as pd
import matplotlib as mpl
import matplotlib.pyplot as plt
from scipy import stats
data = randn(75)
plt.hist(data)
Returns the following message:
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-2-fa104aadeee7> in <module>()
8
9 data = randn(75)
---> 10 plt.hist(data,bins=20, density=True)
/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/matplotlib/pyplot.pyc in hist(x, bins, range, normed, weights, cumulative, bottom, histtype, align, orientation, rwidth, log, color, label, hold, **kwargs)
2339 ax.hold(hold)
2340 try:
-> 2341 ret = ax.hist(x, bins, range, normed, weights, cumulative, bottom, histtype, align, orientation, rwidth, log, color, label, **kwargs)
2342 draw_if_interactive()
2343 finally:
/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/matplotlib/axes.pyc in hist(self, x, bins, range, normed, weights, cumulative, bottom, histtype, align, orientation, rwidth, log, color, label, **kwargs)
7734 # this will automatically overwrite bins,
7735 # so that each histogram uses the same bins
-> 7736 m, bins = np.histogram(x[i], bins, weights=w[i], **hist_kwargs)
7737 if normed:
7738 db = np.diff(bins)
TypeError: histogram() got an unexpected keyword argument 'new''
I have attempted to uninstall and reinstall python, ipython, numpy, matplotlib and scipy and install them in /usr/local/bin
though the error persists.
Has anyone seen this issue before or would know a possible solution? Thanks
For me the comment from cphlewis was the hint I needed. I was working with matplotlib 1.1, and after an update to 1.5 everything works fine for me.
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