When I loaded package debug to debug a script with zoo objects, I got trouble: function index from zoo got masked by debug package. How can I unmask index? In general, how to deal with these name colliding problems? We just do not use debug package with `zoo'?
Exported symbols are always identifiable with the :: operator:
zoo::index
Hidden functions not declared in the namespace can still be accessed using ::: (triple-colon), and example would be
zoo:::.onLoad
which you can see even though it is not exported.