Fig. 3
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13637-015-0024-7/MediaObjects/13637_2015_24_Fig3_HTML.gif)
Trajectories of four MCMC chains in the sample phase. For each chain, the integers in the y-axis represent unique DAGs (which are in general not the same between chains despite being represented by the same integers). The last 50,000 sampled DAGs are shown