Sets: Union, intersect, and difference

- R has a complete collection of set operators.…Let's take a look at union, intersect, and differences.…First we need two vectors to compare.…So I'll create Vector A and Vector B.…Notice that both Vector A and Vector B…have the number 10 as part of their contents.…While first of all, I'd like to combine those two…or form a union.…Not surprisingly the command for this is union…and I describe what I'd like to combine.…

So Vector A and Vector B…and I hit return…and you'll see that it returns a union…of Vector A and Vector B.…Notice that this is a unique union.…So 10 is not duplicated.…Now I'd like to find the intersection between…Vector A and Vector B.…Intersect.…Vector A.…And Vector B.…And when I hit return…10 is the intersecting number between those two vectors.…

Now I may want to know what's unique about Vector A…compared to Vector B?…To do that I'll use setdiff…and I type in Vector A…compared to Vector B.…And this'll tell me what's unique about Vector A.…One, two, three, four, five, six, seven, eight, nine.…It doesn't include 10…