Because a simList works with an environment to hold all objects,
all objects within that slot are pass-by-reference.
That means it is not possible to simply copy an object with an assignment operator:
the two objects will share the same objects.
As one simList object changes so will the other.
When this is not the desired behaviour, use this function.
# S4 method for class 'simList'
Copy(object, objects, queues, modules, ...)An R object (likely containing environments) or an environment.
Whether the objects contained within the simList environment
should be copied. Default TRUE, which may be slow.
Logical. Should the events queues (events, current, completed)
be deep copied via data.table::copy()
Logical. Should list of modules be copied.
Only used for custom Methods
a copy of object
simList objects can contain a lot of information, much of which could be
in pass-by-reference objects (e.g., data.table class), and objects that are
file-backed, such as some Raster*-class objects. For all the objects that
are file-backed, it is likely very important to give unique file-backed
directories. This should be passed here, which gets passed on to the many methods
of Copy in reproducible.
uses capital C, to limit confusion with e.g., data.table::copy().