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Okay.

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I hope you're starting to get excited as I am about Jupiter notebooks because I seriously love these.

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Now the beautiful thing the final last beautiful thing about these is because once you finish your project

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you probably want to share your work.

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Maybe that's true.

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Get Harbaugh or give it to one of your teammates so they can check it out for you.

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Now Jupiter notebooks makes that a breeze.

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What you might have seen is throughout past few lectures is auto saved indicator here.

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But if we wanted to generate that normally if we wanted to save our work so we're finished for the day

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and when we want to save it shut up shop then come back get ready for tomorrow we can go save here now

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is going to automatically save it or remember how we're not getting used to using this if we are in

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command mode which is the blue square and no pencil up here.

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We can hit s which is a shortcut for save.

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Otherwise at any time that you want You can also hit command s if you're on a Mac or control less if

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you're on Windows or something like that.

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It's a good habit to get into if you're continually hitting command s or save or just clicking this.

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But again remember you want to focus on using the keyboard because saving your work often will prevent

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you having to redo things.

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If for some reason you end up losing something okay.

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So a notebook is saved.

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Now how do we shut it down if we come back to the Jupiter dashboard.

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We can see running.

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And you've got this shut down button here.

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But usually you probably won't use that.

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So just shut our notebook down.

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We're going to go into terminal and we can see here that we've saved our notebooks several times and

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this is timestamps.

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So these are the last three saves that we did pretty close together after each other to shut the notebook

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down and stop your terminal from running going to hit control plus C then it's going to ask you yes

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or no you're going to have to hit Y or N within five seconds.

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I hit y because I want to shut it down.

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That's what you'll see here shutting down one kernel.

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Let's go back here.

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Go files running we have to refresh this or close this.

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Sometimes a Jupiter dashboard won't update because we've closed the connection in our terminal.

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But that's fine.

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We can X out of this.

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So now Jupiter notebook is no longer running.

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It is saved in our sample project folder.

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We come back here and they'll cause sample project.

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There we go.

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Example notebook.

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And it's going to say Date Modified today at 11 twenty seven am.

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There we go.

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Save it two minutes ago.

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Beautiful.

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And what you'll see here is we're now back.

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We've got the environment activated within the sample project folder so what I would have wanted to

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completely get out of the environment as well like Conda deactivate.

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Maybe you want to activate another environment to work on another project.

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So to get out of your current environment you can type in conduct deactivate that's going to take you

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back to base the base the default environment but we're still within the sample project folder so if

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we came back tomorrow let's let's exit out of everything that we have opened actually so we can see

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what it's like to come back completely from scratch because this is what what you want to be doing.

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Remember this is what we've set up.

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We've got our project folder.

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You've seen some data being imported into the workspaces but a notebook and you've seen a little bit

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a little highlight of using some tools within your environment.

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So let's reactivate this whole set up again.

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Terminal we're going to increase the size.

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See how I have base activated by default.

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I'm going to change into my sample project folder so desktop mind stored on my desktop under email course

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yours might be different remember.

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Now I'm within the sample project folder if I hit a less I can see the image that we uploaded.

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I can see my environment I can see my notebook and I can see the data there heart disease dealt CSB

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so if we wanted to access a notebook let's enter Jupiter notebook huh.

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Command not found.

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Take a second to think about why that command might not work.

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If you'd guess that we didn't have our environment activated.

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That's correct but that's alright if you didn't because it took me ages to get used to this kind of

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workflow but I want to show you.

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So Conda activate not activation Conda activate.

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We're gonna reactivate our environment users isn't it users.

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Daniel.

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Desktop.

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Slash and pause slash sample project slash.

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There we go.

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We notice that base has changed to this.

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Now if we run the Jupiter notebook command again.

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Jupiter notebook.

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What do you think this will do.

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Let's see

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this is gonna bring us back to the Jupiter dashboard.

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Now if we go into running we've got no notebooks no terminals running.

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We noticed that our terminal has changed again to this this funky looking code.

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All it's saying is we've got a Jupiter notebook server running on local host Don.

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8 8 8 which is the same as here.

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Quite a not not Triple 8.

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We have our notebook here to start it up.

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You can click on it.

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And we come back beautiful.

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We've got everything that we were we were looking at before and the previous video.

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Now the thing to remember is that when you reload a Jupiter notebook all the cells all the memory of

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the cells will start from scratch so we wanted to rerun this cell.

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Remember to run a cell is shift plus enter or this run button but we're ignoring the toolbar we want

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to get proficient at using the keyboard shift enter.

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It's gonna start back at 1:00 and if we do the same two same three.

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Now if we ran this a what do you think I will be equal to as the output because we've gone to three

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equals six angles five shift into I equals six.

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Remember because Jupiter notebook cells a running order of execution and so this is the workflow that

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you would take if you were coming back to work on your project again you might have to rerun all of

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your cells so the code say we were working down here you may have to rerun all of the cells above so

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that you can work on your code down here and you're not missing out on any data.

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And the final beautiful thing is because we've now got a workspace that we can work on our entire projects.

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We can also share this workspace.

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So if we come back our sample project folder that we've been working through has our environment has

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our data has this image that we've we've been looking at and it has our notebook which contains code

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and text about the project we're working on.

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So if my team name was like Hey Daniel can you share with me the Jupiter notebook you've been working

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on for the heart disease project I could be like sure I could send them this and then they could if

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they've got this exact same set up on their computer they could start up an environment import the data

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work through the six step AML framework and then run the code and read my descriptions throughout my

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Jupiter notebook.

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So that is a beautiful thing about Jupiter notebooks are kind of like the all in one workspace for Data

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Science and machine learning projects.

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So in the next few lectures or in the next few lessons and projects we're going to really dig into this

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this little framework here at the same time it working out how to apply different data science and machine

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learning tools such as these within our Jupiter notebook.