Decide if large objects should be copiedSource:
Decide if large objects should be copied
object (potentially of large size)
Should the object be copied internally by
NA(by default) means that objects smaller than 1 GB are copied. If the size is larger, the argument must be set explicitly. Set
TRUEto make copies regardless of object size. This is recommended if enough RAM is available. If set to
FALSE, calculations might be carried out but the object will be changed by reference. IMPORTANT! This might lead to undesired consequences and should only be used if absolutely necessary!