# Methods for indexing objects of different classes.R

from: ?"["

These operators are generic. You can write methods to handle indexing of specific classes of objects, see InternalMethods as well as [.data.frame and [.factor. The descriptions here apply only to the default methods. Note that separate methods are required for the replacement functions [<-, [[<- and $<- for use when indexing occurs on the assignment side of an expression.