pandas 2.0 compatibility issue #4
Description
pandas 2.0.0 introduced several breaking changes that cause the simulation to crash on any environment running pandas 2.0+. This is due to the code initializing some series with [0] * n (could assign float values to such series before but not anymore) and due to trying to use positional indexing on pandas series with datetimeindex, which used to be possible but not anymore.
So the code at release v1.0.0 actually needs pandas <2.0.0. This compatability issue will be fixed in the new branch.