Logging needs to configure, what kind of graphs and aggregations are created.

[DavoudTaghawiNejad]

Logging needs to configure, what kind of graphs and aggregations are created,

simulation.logging(variables={'a': ['mean'], 'gdp': ['mean', 'aggregate', 'panel']} possessions={'money': ['aggregate', 'panel'], ...})

simulation.panel and simulation.aggregate should be depreciated accordingly

a simple list should still be supported.