Clears the global environment except for objects specified in the DEFAULT_KEEP_LIST system variable.
Source:R/clear_objects.R
      clear_global_proj.RdThis function removes all objects from the global environment except for those specified in the DEFAULT_KEEP_LIST system variable. The variable is expected to be a space-separated list of object names. If the variable is not set, the function will not run.
See also
rm for the underlying mechanism used to remove objects.