Stacked-area-chart does not work correctly when you play with the different options

[juandasgandaras]

Hi:

I was testing the example with a stacked area chart:

http://django-nvd3.readthedocs.org/en/latest/classes-doc/stacked-area-chart.html

But it is not working correctly, because I change the parameters when I click in the different options (stacked, stream and expanded) and serie 1 and serie 2 and at the end when I come back to the first the graph is not the same.

Best regards

Juan