Bug report

Bug summary

There is an inconsistency between thematplotlib's documentation and actual outcome of the bar plot function. The documentation says thatleft argument in the bar plot function indicate

the x coordinates of the left sides of the bars

In fact, theleft parameter indicate the center of the bar.

Code for reproduction

importmatplotlib.pyplotaspltimportnumpyasnpN=3width=1.0stat= [2.4,3.2,1.6]ind=np.arange(1,6,2,dtype=np.float32)fig,ax=plt.subplots()ax.bar(ind,stat,width )ax.set_xticks(ind+width/2.0)plt.show()

Actual outcome and expected outcome

The x axis ticks should be in the center of bar if the documentation is right. In fact, the ticks are in the right side of each bar. See figure below

Matplotlib version

• Matplotlib version: 2.0.0
• Python version: 2.7.13 and 3.5.2
• Platform: Linux (CentOS 7) and Windows
• How did you install Matplotlib and Python: Anaconda