cr2 is a visualization tool to help analyze data generated on a
device. It depends on ipython notebook and pandas. First install these
dependencies if you don't have them already:

$ apt-get install ipython-notebook python-pandas

Now launch the ipython notebook server:

$ ipython notebook

This should pop up a browser. If it doesn't, open a web browser and go
to http://localhost:8888/tree/

In the doc/ folder there's a "00 - Quick start" which describes how to
run cr2. Other notebooks in that directory describe other functions of
cr2.