Behaves like normal + except for character
vectors combinations of character and numeric vectors, which are pasted
together.
Usage
x + y
Arguments
x, y
numeric or complex vectors or objects which can be coerced to
such, or other objects for which methods have been written, or a combination
of numeric and character vectors.
Value
Same as +, except if e1 and e2 are two character
vectors or a combination of a character vector and a numeric vector, in this
case the result is paste0(x, y).