Matthias König - 2016-03-11

Don't think this is a good idea.
There should be much more math allowed on calculating the data generators in SEDML among other things slices in the spirit of
https://docs.python.org/2.3/whatsnew/section-slices.html

Get datapoint 10 to 19
dg = a[10:20]

A reverse slice would correspond to negative step size
dg_time_rev = time[::-1]
dg_a_rev = a[::-1]
Reverse time course would be
plot(dg_time_rev, dg_a_rev)

In my opinion post processing.