pgmpy/pgmpy_viz — pull request #6 by pramttl (2013-10-18 05:48:15+00:00)
Title: Added the "Toggle Create Node" state button

In reference to #5
The "Toggle Create Node" button allows the user to switch between the Create Node State and the Normal State.
Once the user clicks on the Toggle Create Node button, he can click anywhere to start adding nodes. Once done he can click on it again.