| %*=% | Multiplication variable reassignment |
| %+% | Paste Infix Operator |
| %+=% | Addition variable reassignment |
| %-=% | Subtraction variable reassignment |
| %/=% | Division variable reassignment |
| %btwn% | Between Infix Operator |
| %nand% | NAND infix operator |
| %nin% | Not-In Infix Operator |
| %xor% | XOR infix operator |
| %^=% | Exponentiation variable reassignment |
| %||% | Default NULL operator |
| %|||% | Expanded default operator |
| .is_allFalse | Tests if an object is entirely comprised of 'FALSE's |
| .is_allNA | Tests if a vector is entirely comprised of NAs |
| .is_length_zero | Tests if an object is of length 0 |
| extended-null-default | Expanded default operator |
| null-default | Default NULL operator |