Currently, we implicitly use that the starting day of the simulation is always zero and the last time in the initial data for flows is also always zero.
Enhancement description
Allow different values for the start day. Therefore we have to change
the setting of the first time point for the populations in the constructor
the description of the constructor
setting current_time=-dt in the update of force of infection in the case of the simulation
the parameter t_0 in the simulation files should be removed as it is are not used (already done in PR #972 )
?
Additional context
This may also affect #952.
Checklist
[X] Attached labels, especially loc:: or model:: labels.
Motivation / Current Behaviour
Currently, we implicitly use that the starting day of the simulation is always zero and the last time in the initial data for flows is also always zero.
Enhancement description
Allow different values for the start day. Therefore we have to change
Additional context
This may also affect #952.
Checklist