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‫So now let us learn how to install packages in r first.

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‫What is a package packages in R is what libraries are in other programming languages packages is basically

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‫a collection of code that other people have written and that gives some additional functions to our

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‫program the availability of numerous packages for r makes R one of the most powerful data things programming

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‫languages for example there is a package called DG plot DG plot package is used to create different

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‫types of graphs plot charts for our data so that we can visualize our data in a better way.

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‫To let us learn how to install packages in that you can also see that in the right bottom window this

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‫window about which we have not talked about till now there is a tab.

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‫Title packages

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‫you can see these are the inbuilt packages which are already installed with R.

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‫You can scroll down

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‫on the left of the name of these packages.

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‫There is a checkbox all of these are unchanged which means all these packages are installed but they

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‫are not loaded.

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‫You cannot use them in your code to use a package.

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‫You will have to loaded to loaded.

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‫You can just simply take the check box.

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‫You can see a code is run in the console and that particular package has been loaded.

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‫Now you can use DG plot while writing the code.

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‫But these are only the in big packages.

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‫You may want to install a package which is not in big.

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‫I am writing here some of the Web you added where you can see a whole list of packages available with

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‫R so written here.

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‫These three links if you brought all these links in the first link you can find the packages are clubbed

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‫by their use case all the packages which help in plotting and graphing.

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‫I'll put in one group for pre processing the data all the packages available at Club then put in one

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‫group.

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‫So the first link will give you packages club and two groups.

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‫The second link will give you packages in the alphabetical order by their names to so it will list all

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‫the packages in R by their names.

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‫It's a huge list.

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‫The third one is another website where people to make the packages which can be used by other people.

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‫So it's a huge community you can find numerous packages there.

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‫Also to browse the Ural through out window you can use browse you all command so will raid browse your

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‫role.

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‫So when we start typing browse since it is an inbuilt command our studio prompts us the all the commands

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‫which start with browse.

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‫You can navigate using up and down key.

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‫Select the one that you want and prestige tab key.

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‫This will autocomplete that of the command for you within this within this decade.

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‫We need to enter the URL will first have double quotation marks.

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‫Will copy the mural and pasted here and will run this command.

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‫You can see that website is opened up in the default browser.

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‫And here you can see the packages are clubbed topic leaves so if you want did you upload it is in the

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‫graphics.

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‫Topic you can explore this on your own.

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‫If you are interested in some particular package go ahead and install it.

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‫So now let us learn how to install a package.

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‫There are two ways.

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‫One is the way provided by our studio.

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‫It is you go to the tools in the menu bar we didn't do it.

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‫There is an option of install package here if we want to install package from the repository of crime.

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‫You just write the name of the package here and it will install it.

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‫It was downloaded from decline Qur'an repository and installed if you want to do it from some other

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‫website you can change the install from option hit.

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‫So this is one way I'll show you the second way.

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‫And I suggest that we use the secondary the second ways by using this script as click cancel here in

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‫the left script window.

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‫We'll write a script to install package y.

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‫I suggest this is because when you are sharing your code with someone else that someone else should

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‫also install the package which is required by your code.

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‫If you have not written it in the script the other person will not come to know which package you have

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‫installed.

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‫If you just go to Tools and install a package it will not be part of the script.

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‫So it is better that you write the code to install package in the script.

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‫If you are only going to use the analysis then you can go ahead and use these tools option also.

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‫So let us install a package which is a relevant and declined repository will write install not packages

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‫within this bracket.

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‫We need to give the name of the package and within double quotation marks will write lib linear

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‫labeling.

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‫Here is a package which is used to do linear regression analysis so will press control enter

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‫you can see the control was giving a warning because as I told you r is a case sensitive language and

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‫I entered capital L instead of small.

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‫So let's correct this and on it.

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‫So it is automatically downloading from grand and once it is downloaded it has installed here and the

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‫side window also.

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‫You can see lib linear is available and the description is altered it in here.

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‫Linear predictive models can be built using the celebrity.

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‫Now this package is a start again.

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‫It is not loaded to see the list of all the installed packages will right library open and close a bracket

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‫to libraries where all the packages are stored.

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‫So when I run this command it will give the list of all the packages installed.

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‫You can see this is the list of packages installed and a smaller description enclosed just add.

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‫And if you want to see the list of currently loaded packages will rate search open and close bracket.

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‫If you run the search command

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‫this is the list of packages that are currently loaded and which you can use to load up package which

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‫is installed will use a required keyword so all right come on require and relate labeling it with a

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‫double quotation marks.

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‫So

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‫let's go.

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‫Double quotation marks.

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‫So you see earlier when we ran the search command labeling it was not available.

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‫Now if you run it again the second one is labeling it and as it is available you can also see in the

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‫date window labeling it now has a tag

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‫to remove.

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‫You can simply unpick the package or you can write detach the EPA page within double quotation marks

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‫package colon

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‫labeling it

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‫comma and load is equal to

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‫is equal to to

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‫control enter.

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‫Now you can see that take is removed from labeling it.

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‫Now to uninstall this package we will use remove packages command the will rate remove Dodd packages

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‫within bracket we will rate within double quotation marks.

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‫The name of this package lib linear

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‫control center and that package is removed.

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‫You'll not be able to find it in the user library to know more about any package.

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‫You can type question mark and then write the name of the package

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‫so I write.

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‫Did you plot to run this command.

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‫You can see in the right window there is a help tab that help guide has all the documentation all standard

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‫packages commands everything whenever you want to know about any standard command or package.

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‫Just a question mark.

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‫Command name odd package name and you'll get all the information about it.

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‫So this is how we install a package.

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‫Make it available by loading it uninstall it or make it unavailable by detecting it.

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‫This is all about packages in the next video we'll look at some inbuilt datasets of odd outcomes with

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‫some in big data set.

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‫We look at some of those data.