 Hi, this is Dr. Don. I wanna take a little bit of time here and do a walkthrough of getting set up in the laboratory too and show you some things that may help you get moving. First of all, I like to set up my browser and close everything except the material I'll be working with. This allows you to do everything in one screen if you've got it. You can see here I've got the Lab 2 Rehears 1 tab open, the Lab 2 Rehears 2, although I'm just gonna show you Rehears 1 here, and then the Lab 2 Remix tab, and then I've got my Posit Cloud open, okay? And this is the way I like to work. I can go back and forth just to make it easier as I'm working with the Lab 1. I'm gonna move my Posit Cloud just next to it. So here we are in your Lab 2 Rehears. You should of course read down through this material. I would visit some of these references and things that we suggest to you. For example, this Grammar of Graphics, which is a good six minute video that gives you an overview of the GG Plot package that we're gonna use throughout the course to help us make our graphics. And then as you go down, the first thing here is to set up the lab. And we've got this first link. It says Link to Set Up Lab 2. And all you need to do there is click on that, and it will take you to your Posit Cloud login page. And once you log in, it will set up Lab 2 in your Posit Cloud. Of course, remember, you've got to immediately save that temporary copy up there at the top where it says Temporary and then Save Permanent. Click on Save Permanent right then to make sure you've got that copy, okay? As you read on down here, you'll see there's a second link to Posit Cloud. And this is use this link to continue work on Lab 2. What this is for, if you take a break, lunch break, dinner break, coffee break, go for a run, and you shut down, and then you come back, shut down your Posit Cloud, and you come back, you can click on this link, and it just takes you to the login page, okay? It doesn't create another copy, because you don't need that. And as you scroll on down here, which is read everything, understand it, then you get to the first code chunk here, and you can see we've got a number. CC1 stands for Code Chunk, and we've got the little green Running Man icon which says I need to copy and paste this and then run this code. So what I'm gonna do here is click on Copy Code, and it changes, it says copied. Now I can go over here to my Posit Cloud, and I'm in my, whoops, I don't have Rehears 1 open yet. That's why it's got the console up top. Let's go over here and I'm gonna click on the name, Rehears 1 worksheet, and then it opens up, and it opens up in what we call the Source Editor window. You can see we've got two tabs there, one is called Source, and one is called Visual. This is a Source Editor and the Visual Editor, and I'll show you what I mean here. This is the Source Editor, it looks just like the raw text code, and that, for some people, is the safest way to go to when you're learning how to do this, use the Source Editor view. But you can, I'm gonna click on the Visual tab, and what this does, it makes the page look more like what it's gonna look like when you save it to a PDF or a Word. It also looks more like the actual webpage, and if you scroll down here, you can see the same information is there, but it looks, and you can see the code chunks are still there, you can see the boundaries, but you can't see those leading and ending back quotes, and that's where some folks get into trouble. They go back to the Source view, and you can click these back and forth. Here's this code two, and again, see these three little dashes there, if you look real close, they're actually back quotes, and that's a key on the left-hand side of your keyboard up near the top left-hand corner. Mine has got the Spanish tilde sign as the uppercase and the lowercase is this back quote. If you accidentally delete one of those, which is easier to do when you're in the visual mode, see what happens? The gray expands and expands and expands, and it messes up the ability for you to use the code. So be careful of that. I'm gonna go back up here, find my place. You can see there should be three. I only got two. I'm gonna go back, whoops, and put that missing back quote back in there. Now I'm gonna save that. And by the way, whenever you make a change, you can see how the name turns red and the asterisk click on the save to save that change. It goes back to black. So there is my code chunk two. I wanna go up here to code chunk one. It's already got a bunch of material in there and I've forgotten my place. I'm gonna highlight that, control Victor, paste over it. Now you can see I've got all these packages that we wanna load into the session library. So I'm gonna run the code over here to run code button. And it may take a little bit to load those. And you can see down here in the console window, this is where the code actually runs. We can see each of those packages has run and we're back. We've got a ready prop. We've got that greater than symbol and then little insertion blinking there. That's telling me we're ready to run again. We go on down. Here's code chunk two. I'm just gonna put my cursor in there and then go back here to research, excuse me, to rehearse one on the webpage. Scroll down. There is code chunk two that I need to copy. So again, green square, copy the code. Just click on it. Now it's copied. I can go back into deposit cloud inside my code chunk two. Make sure I'm in the right place. Put the cursor there, control V on the PC. And that takes that code in there and I can run that code. And you can see this time it's created the graph, the histogram that we want. And you just continue forward there. If we go down here to code chunk three, I'm gonna go back and if we scroll on down, you can just keep reading this. And this time we're going to load some data. So I'm gonna copy that. It includes the library reader in case we don't already have it. That's okay if we paste it in again. Go back here, paste it into that code chunk three again. Control V. Now I can run this. And you can see it's run. And over here I've created a data object, the New York City Films, which is what this said. This is read comma separated file. And it gives it the path, film permits, which is in our data folder right there. And that's how we get to it. And we load that data file and then create this data object. One final thing, if you click on that name, it will open up inside the source editor window and it'll look like an Excel or Google worksheet. Whoops, get it loaded in there. You can see our variables are across the top. And then these rows are our observations. And we got a bunch. If you look at that it says 50728 of 14 variables. So there's 50,000 rows and 14 columns. So I hope this helps get started and go do it.