Method Dispatch of 'squarebrackets'

This help page gives some additional details regarding the S3 method dispatch used in 'squarebrackets'.

Ellipsis

Due to how the S3 method dispatch system works in 'R', all generic methods have the ellipsis argument (...).
For the user's safety, 'squarebrackets' does check that the user doesn't accidentally add arguments that make no sense for that method (like specifying the inv argument when calling ii_x).