.. The collection of hyperlinks used in the different section .. _DataFrame: http://pandas.pydata.org/pandas-docs/stable/api.html#dataframe .. _DataFrame.plot: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.plot. html#pandas.DataFrame.plot .. _ExtJS: http://docs-origin.sencha.com/extjs/4.2.1/#!/api .. _JSON: http://www.json.org/ .. _matplotlib: http://matplotlib.org/ .. _matplotlib.colormap: http://matplotlib.org/users/colormaps.html .. _matplotlib.pyplot: http://matplotlib.org/api/pyplot_summary.html .. _pandas: http://pandas.pydata.org/pandas-docs/stable/ .. _plotting: http://pandas.pydata.org/pandas-docs/stable/visualization.html .. _pyplot.bar: http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.bar .. _pyplot.barh: http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.barh .. _pyplot.box: http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.box .. _pyplot.hexbin: http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.hexbin .. _pyplot.hist: http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.hist .. _pyplot.pie: http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.pie .. _pyplot.scatter: http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.scatter .. _smart_query: http://web2py.com/books/default/chapter/29/06/the-database- abstraction-layer#smart_query--experimental .. _Web2py: http://web2py.com/