- [Instructor] When we think about integers in R, there are a couple of questions that come to mind. Firstly, how can we explicitly create integers? And secondly, how can we coerce an integer from, say for example, a decimal. Let's start by understanding how to explicitly create an integer. It's a simple case of adding a capital L to an element. Say, for example, three, I would like to store that as an integer in R, I would add in the capital L. And I can ask for what is the class of the subject using the class function and see integer on the screen. So that's the high level understanding. I could ask for a low level understanding of what this is by asking for the type of data that I have which is an integer. I can also ask for another feature, for example, the length that would tell me how many entries I have. In this case I only have one element, the three L which is an integer as opposed to three and L being independent. So I have a length of one. Can I coerce from say 3.6, I would like to make this into an integer. Let me ask what is the current low level data type of this. It is a double because it is having a decimal at the end. But I could, if I wanted to, coerce this to the integer type by asking for, by using the as integer function and that forces it to be three. Now even though on the screen we see three as a result, I can ask for this, using the equality symbol, I can ask, is this the same as what I had mentioned as being an integer for three? And the answer is true.