pandas.DataFrame.plot.hist  
DataFrame.plot.hist(by=None, bins=10, **kwds)  
Histogram  New in version 0.17.0.     
Parameters:

by : string or sequence Column in the DataFrame to group by. bins: integer, default 10 Number of histogram bins to be used **kwds : optional Keyword arguments to pass on to pandas.DataFrame.plot().   
Returns:

axes : matplotlib.AxesSubplot or np.array of them    


    
{'path': 'public/docs/pandas~0.18/generated/pandas.dataframe.plot.hist.html', 'source': 'DevDocs.IO'}