Bar Charts and Pie Charts in R | R Tutorial 2.1 | MarinStatsLectures

Bar Chart and Pie Charts with R: How to Produce and Modify Bar Charts and Pie Charts with R Programming Language;👉🏼Free Practice Dataset( statslectures.com/r-scripts-d... ); Learn more about Pie charts & Bar charts in this awesome video : ( • Bar Chart, Pie Chart, ... ) 👍🏼Best Statistics & R Programming Language Tutorials: ( goo.gl/4vDQzT )
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In this R video tutorial, we learn to produce barcharts and piecharts with R; we also learn to produce frequency tables in R, and customize the plots in R by adding titles, changing axes labels, adding a box around the plot, and many other modifications to these plots. This tutorial explains how to use "table", "barplot", and "pie" functions and "main", "lab", "las", "names.arg", "horiz" arguments.
These video tutorials are useful for anyone interested in learning data science and statistics with R programming language using RStudio..
Table of Contents:
0:00:07 when to use barcharts and piecharts for your data
0:00:29 how to produce a bar chart in R using "barplot" command (Function)
0:00:35 how to access the help menu in R
0:00:49 what is a "bar chart" and when is it appropriate to use a "bar chart"?
0:01:02 how to produce frequency table in R using "table" command
Modifying Bar Charts in R:
0:02:41 how to add a tile to a bar chart in R using the "main" argument
0:02:48 how to add labels to x and y axes of a bar chart in R using "lab" argument
0:03:02 how to rotate the values on the y-axis in R using the "las" argument
0:03:11 how to change the names or labels appearing under each of the bars in R using "names.arg" argument
0:03:34 how to make bars appear horizontally rather than vertically in R using "horiz" argument
Modifying Pie Chart in R:
0:04:07 how to produce a pie chart in R using "pie" command.
0:04:15 how to add a title to a pie chart in R using the "main" argument
0:04:24 how to add a box around a pie chart in R using "box" command
► ► Watch More:
► Intro to Statistics Course: bit.ly/2SQOxDH
►Data Science with R bit.ly/1A1Pixc
►Getting Started with R (Series 1): bit.ly/2PkTneg
►Graphs and Descriptive Statistics in R (Series 2): bit.ly/2PkTneg
►Probability distributions in R (Series 3): bit.ly/2AT3wpI
►Bivariate analysis in R (Series 4): bit.ly/2SXvcRi
►Linear Regression in R (Series 5): bit.ly/1iytAtm
►ANOVA Concept and with R bit.ly/2zBwjgL
►Hypothesis Testing: bit.ly/2Ff3J9e
►Linear Regression Concept and with R Lectures bit.ly/2z8fXg1
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Content Creator: Mike Marin (B.Sc., MSc.) Senior Instructor at UBC.
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Thanks for watching! Have fun and remember that statistics is almost as beautiful as a unicorn!

[@marinstatlectures]

In this R video tutorial, we will learn to produce bar charts and pie charts with R; we will also learn to produce frequency table in R, and customize the plots in R by adding titles, changing axes labels, adding a box around the plot, and many other modifications to these plots. This tutorial explains how to use "table", "barplot", and "pie" functions and "main", "lab", "las", "names.arg", "horiz" arguments. Like to support us? You can Donate ( statslectures.com/support-us ), Share our Videos, Leave us a Comment and Give us a Thumbs up! Either way We Thank You!

[@marinstatlectures]

You're very welcome, glad we could help! Thanks for watching!

[@jayk4250]

Apologies Marin I sorted it out :). I looked at an earlier video to download the text file instead and that definitely works. Thank you.

[@kylemccready5081]

Just wanted to thank you R has been a struggle and my lecturer isn't great at helping during these covid times so thank you.

[@natalieazevedo]

Great video!

[@namnguyentrung4585]

Thanks for sharing

[@jiminbao2256]

Really GREAT videos!!! Just start to learn R, and feel your videos are really helpful!!!! Thanks a lot, Marin!

[@marinstatlectures]

thanks Jimin Bao, great to hear that !

[@fordchung9770]

Thank you!!!!!!!!

[@iliofornasero1547]

Cool! Even the 2nd series is very good and helpful. That means being "customer (trainee)-oriented"! Great work, really!

[@marinstatlectures]

Thanks Ilio Fornasero , we appreciate you saying that!

[@kamilkhel115]

Good to have you Martin....

[@marinstatlectures]

thanks :)

[@lutingye5942]

Thank you for the fantastic job!

[@marinstatlectures]

you're welcome +叶璐婷

[@ChandanG94805]

superb

[@xunzhou8744]

Hi Mike, many thanks for your videos! In the bar charts, the values on the y-axis are displayed as real values not percentage points, which could be confusing for readers.

[@jeremieskando8926]

Great stuff Marin

[@marinstatlectures]

thanks @jeremies kando, Please share these tutorials with anyone who would find them useful!

[@jiahuicai576]

Great tutorials. I am new to R and your sharing helps a lot thank you so much Martin.

[@marinstatlectures]

you are very welcome @Jasmine Cai! glad you found them useful. Please share these tutorials with your friends and help us reach more people!

[@jiahuicai576]

I made a mistake spelling your name Marin, so sorry for that. Certainly I will share them with my friends they can't afford the miss!!

[@zhangjim5833]

great work, thanks

[@marinstatlectures]

Thanks +Zhang Jim !

[@the_batman6506]

It is just WONDERFUL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@marinstatlectures]

Thanks Medoune Boye !

[@sebastienlozano742]

Hi, thank you very much for the tutorials. Is there any option like names.arg = c("Name1","Name2") for pie charts ? Thanks in advance

[@pratibhacdri]

Hi Martin, thanks for your tutorials. these are very useful. I am completely naive to R so wanted your help, as i am unable to give the right command. I have two variables as group and concentration and wanted to plot the barplot using mean values for concentration (on y axis) and with groups shown on x axis. please help me with the right commands as i got stukced here.Thanks in advance.

[@mohammadj.shamim9342]

Dear Sir, I know that most of the videos especially in that latter ones are talking about descriptive statistics. In bar charts, I would like to show the mean for two categorical values. but when I do that, it shows me frequency. for example, I would like to show the mean of gas exchange for two genotypes using bar charts. I will really appreciate if you can have a lecture about it.

[@lemyul]

good stuff

[@marinstatlectures]

thanks :)

[@nukulsharma7711]

you are amazing pls make more like this valuabe r programming so thank you very much ,,plz make one or two videos for how to get job in the filed of R Programming and where we can get the job and what type of nature and what about the salary etc..... plz make for us and thank you so much for your valuable teaching style ,, i really want to learn the R software rather than the python

[@talithaskyegreer2415]

Hi do you by any chance demonstrate ggplot in any of these learning resource playlists?

[@Henpukacaemblu]

Could please tell me if you know how to display values of observations on pie graphic (or percentage). Thanks.

[@anissurianiibrahim444]

thanks

[@marinstatlectures]

anies ibrahim you're welcome

[@paulcap9688]

Hi, thanks for the videos. Just wondering, why is it that when I type in "class(Gender)" do I get the response "character" rather than "factor" ? Sorry if it's a dumb question

[@LucasReis71]

What if I get the data from database? I mean, I have done what you did with the table command with a count and group by in sql, but I'm not able to show it in a barchart.

[@sameersachan7598]

Hello Marin , Followed all previous videos on R and wanna thanks for sharing the knowledge . U Rock !!. Here regarding Bar Chart , how to create one with multiple variables ?

[@marinstatlectures]

you're welcome +sameer sachan ...following this video, we have 2 other videos in this series, on for making side-by-side box plots for comparing groups, and one for making stratified box plots. you can check out those two other videos for more on making box plots for multiple variables.

[@jemu776helps2]

I spent the whole day doing R, but struggled. Please help. If you make a chart in excel for two variables, how would you graph it on a bar and pie chart (example, x-axis, countries (qualitative), y-axis-total amount of chocolate consumed(quantitative)-my question is different but very similar to this). Any help greatly appreciated.

[@sushantkmr]

Thanks for the awesome tutorial. I request you the share the data to replicate the statistics on the same data set.

[@marinstatlectures]

you're welcome +Sushant Kumar ! under the video, if you click on "SHOW MORE" you will see a link to download the data, as well as more detailed info on the video, and at which time points in the video certain topics are discussed.

[@amirkadir6743]

hello, sir how we can detect there anomaly in our dataset. Thanks in advance

[@sanjayboga4791]

Sir, I couldn't be able to open Box Plot on Rstudi. What package I need to install. Can u suggest me what r all the packages I need to install for this tutorial.

[@arpitsharma7695]

Hello Mark. Great Videos.Learning A LOTTTT through them. One Question though- @3:30 you show the use of names.arg=c("Female","Male") NOW, If we switch this to names.arg=c("Male","Female") the label does change but then it is wrongly labeled. How can we make sure that the label is as we show in the names.arg command and the actual value also changes accordingly. Any link that can answer my question would also help. Thanks

[@marinstatlectures]

Hi +Arpit Sharma , that is correct...using the *names.arg* just tells R what to label the axes, but it will not change the order in which things are plotted. do change the order that they are plotted in, you can do the following: i will assume that you have a vector named "x", and it is a *factor* in R, with 3 levels (a, b, c). by default, R will plot them in that order. suppose that you wanted to change the order to have "b" plotted first, then "c" and then "a". to do so, you can use the following command: *x

[@saysongkhamsayavong525]

Hello Mike, I have watched your video in R that it is very useful for me. so, i would like to know how to make a chart of cross tabulation of land use change during 2000 to 2010 for example. Year 2000 Forest Rubber Paddy Year 2010 Forest 162,577 402 1,117 Rubber 16,788 192 836 Paddy 1,553 27 2,338 Thank you in advance.

[@rameshkummam1]

Mind blowing explanation sir :) Would you help me in below query: How to add a respective numerical value over a bar. Example:If male count=30 and female count=60.When I am plotting a bar,it should show respective values over the bar.Help is really appreciated.

[@marinstatlectures]

Hi Ramesh Kummam , thanks for the compliment! you can add text onto a plot pretty easily using the *text* command in R. i have a video explaining all of this, so i will direct you there rather than try to explain it all here. you can check out this video: kzbin.info/www/bejne/kKmWf6amrp2mrdU

[@nqddn]

Hi all, what if I want to go further by classifying male/female in relation to smoke yes/no? Can anyone help me on this? Thanks!

[@ariaseeva4226]

Hi I am new to R I need Help ON load multiple data file such as 001.csv ... 332.csv in R and how to loop the file number 001 -> 332 in R

[@b11918]

i have a excel with 5608 records when i am plotting the graph its only showing ibb.co/iJT2fa(image snapshot) its not showing the graph how to reolve it ?

[@ragethewolf]

Hi, Thanks for the help in understanding how to create a bar chart.. However, need your help in understanding how to adjust width in R as I'm new to the world of programming.

[@marinstatlectures]

Hi +ragethewolf , you will have to play around with the *space*, *width*, and *xlim* commands to find the right values, depending on the number of bar in your plot. here's a simple example with just 2 bars, and you can modify this to your needs. Consider making a barplot of *x

[@ragethewolf]

+MarinStatsLectures It worked thank you so much watching and learning from your videos currently will bug you some more if I have more doubts :P

[@marinstatlectures]

glad to hear it did the trick ragethewolf !

[@hodemary1322]

Hello Sir, I'm having error working with the LunCapData. When I run function with any of the column names it returns error. Eg. class(Age) or mean(Age[Gender=="female" ] ) Thanks.

[@alisaber502]

When I want to see the class of LungCapData it results like this: "data.frame" Also it shows the class of Gender like this: "character" What should I do? please help

[@dhruvd8725]

what if i want different colors of bar in barplot?? :) how should i change the 'col' argument in the barplot() function?? :)

[@marinstatlectures]

Hi +Dhruv Dangwal , just set the *col* argument to have multiple colours, e.g. assuming you have 3 bars, and you want them to be red/blue/pink, use *col=c("red", "blue", "pink")* (note, you can also use numbers for colours, col=c(2, 4, 6))

[@dhruvd8725]

MarinStatsLectures thanks sir!! :)

[@nsengajado3188]

How to compute return of financial data in r

[@immigrationIQ]

Excellent video please give me some inputs on how to make such videos tutorials is there any specific software tools

[@marinstatlectures]

Hi Sudhakar Paul , thanks! theres many ways to make videos like these. the first thing you'll need is screen-capture software. we use Adobe Captivate, Camtasia, or Snagit, depending on the video were making. but there are others that will work just as well. we also use Photoshop and Powerpoint at times as well. Of course, many other software will do the trick just fine. hope that helps you get started. good luck ;-)

[@jemu776helps2]

also how did the 358 and 367 appear?

[@KishoreOlii]

Nice tutorial. Hello Marin, I need one help. I have a excel file of 50,000 rows and 11 columns. I need to draw pie chart using the above data in a webpage. How to do that? Can you help please?

[@marinstatlectures]

Hi Kishore Olii having 11 columns means you should have 11 variables. you can make a pie chart of a variable by using *pie(table(VariableName))*, after having attached the data, and know ing the name of the variable (which you can check using names(data)), replacing "data" with the name of the data you have read in.

[@AkashKumar-vc5yl]

Hello Sir, when I am trying to make the pie chart, it is saying that x must be positive although all the entries are positive, I even tried to make a pie chart from its absolute value but still it is displaying the same message. Kindly suggest me something regarding the same

[@marinstatlectures]

Hi +Akash Kumar , if yo let me know a bit more, i may be able to help....i can't really know what the error is without knowing the commands you are entering, what "x" is, etc... in general, the command is: *pie(table(x))* , where "x" is a categorical variable/factor...

[@lucasallori]

Hello Marin, I am using the barplot graph with the command beside=TRUE. But when I do that the x axis stay in a descontinuos manner. What can I do to make the x axis continuous?

[@marinstatlectures]

Hi +Lucas Henrique Allori Glauss , can you clarify your question? the bar chart is for a categorical variables, so there isn't a way to make it continuous....so i think something in your question is not coming across clearly...

[@lucasallori]

Sorry about that, let me try again. Whem we create a legend in plot, we can add a box using the command bty="O" or "L". I wanna do this for my graphics, I wanna put lines in the axis side 1 and 2, like a "L". I read in some place the command type="L", but it dosen't works here. sorry one more time, I hope u can understand now :)

[@jayk4250]

Hello Marin. I have an issue with downloading the LungCapData. I clicked on the excel file under "Show More" and then downloaded the file onto Excel. Then I typed LungCapData

[@marinstatlectures]

Hi +Jay K , glad to hear that you sorted it all out

[@rabinkc831]

I have data for different yield of wheat at two levels of fertilizers. now how do I make a bar graph for yield V fertilizer levels?

[@marinstatlectures]

Hi +Rabin KC , you'll want to make side-by-side box plots, one box plot of yield for each of the fertilizers. bar plots are for categorical variables, so you wont want to make one of those. i show how to do that in the following video (here, i make box plots of lung capacities for males and for females, so same idea as yours): kzbin.info/www/bejne/i2eXqoGsoc2pb6s

[@nilanjanjoshi9027]

Hi, How can I set different bin sizes in same mosaic plot? I have data ranging from 0 to 50000. Many entries are decimal values and very less entries are above 10000. For now I can loose the outlying data. Please guide about this. Thanks in advance.

[@marinstatlectures]

Hi +Nilanjan Joshi , iv'e answered your question in the other place you posted it as well...but here's the answer again. first worth noting is that the bar chart is for categorical variables, and the variable you describe here is numeric. so, you will have to convert it to a categorical variable first, before you can make a bar plot. i have a video showing how to change a numeric variable into a categorical one, so i will direct you there to see how to change it, so that you can produce a bar chart: kzbin.info/www/bejne/e4jWYoKomc1rpKs

[@saurabhtosawad2237]

Hello, When I put in the statement class(Gender/Age/or any other object) I get the output as object not found, even though the table has been attached. Is it because of the separator function? Because when I put in names(LungCap) it gives me an output Gender.Age. Lungcap. Height. Please advice.

[@marinstatlectures]

Hi +Saurabh Tosawad it sounds like you have not *attached* the data? you either need to do this, by entering the command *attach(LungCapData)*. or, if you don't attach the data, then you have to use the $ to extract the variables, (e.g.) *class(LungCapData$Gender)* i explain the use of the *attach* command in the earlier intro videos, but the main thing is that you must either use *data.name**$**variable.name* anytime you want to call on a variable, or you can *attach* the data and then call on the variable names without using the $. i explain the use of "$" vs. "attach" in this video here: kzbin.info/www/bejne/Z3PGeKF-rLqHbM0

[@saurabhtosawad2237]

+MarinStatsLectures Hello Marin, After playing around a little with the syntax I realized something: -> When I do not give the sep = "\t", the variables are imported separately. Whereas when I do give the sep function, it is concatenating the variable tables in the imported data. This should not happen! But for the time being I am able to get around the barplot, mean, and attaching the file to the workspace. Appreciate your insightful videos and replies!

[@travel_geek_banglore]

Hey Marin, I am unable to save the LungCapdata set in my Mac. Did we need microsoft excel for that? Because with Numbers i am unable to store the data set with .csv extension. Could you please help on that.

[@marinstatlectures]

Hi +Flora Priyadarsini , I'm not sure exactly why you are having trouble with this, but it wont have to do with Mac. I'm also using a Mac. you should be able to save the file as a .csv file just about anywhere (eg) you can open and save it in any text editor as well, not just in Numbers.

[@travel_geek_banglore]

MarinStatsLectures thanks dude. I am able to access that .txt extension

[@marinstatlectures]

good to hear Flora Priyadarsini !

[@josecurcio416]

I have a problem making the table. Below my data appears the number 1 below each value

[@marinstatlectures]

Hi Jose Curcio , can you clarify your question for me and i can try to help you out? I'm unclear on what you mean when you say that "below your data the number 1 appears below each value"

[@yilmazbingol6953]

prob.table(count)===table(Gender)/725

[@shrion3128]

how do you combine two barplots into one plot

[@marinstatlectures]

Hi, we have a separate video showing how to make stacked or clustered bar-lots, so this should answer your question... you can check that out here: kzbin.info/www/bejne/qJ2UpXVvpZh5gsk

[@rockstarvarun1995]

Object 'Gender' not found....Why? What is wrong with my RStudio...I have linked my .csv file with it too :(

[@marinstatlectures]

you have to either attach the data using $attach(data.name)$ or use the $ to extract the variable, e.g. *table(data.name$Gender)* . in one of our first videos on "Working with Data in R" i explain the use of the $ vs attach and all that stuff, so check that out for a more detailed explanation...

[@malluk4127]

table(LungCapData$Gender)

[@Analytics121]

where is the link to download the data for practice

[@marinstatlectures]

you can find the dataset (Lungcap Data) here statslectures.com/r-scripts-datasets

[@UPPERKEES]

LungCapData was introduced earlier? This is the first video of this playlist..

[@marinstatlectures]

this video is tutorial 2.1...there is a whole "series 1" of videos that come before this. i have created a few different playlists, that combine different sets of videos (e.g. series 1 is a playlist, series 2 is a playlist, ...., all of the videos are on a complete playlist, etc, etc. so there may, at times, be something i say which refers to a video outside of a given playlist and/or series. hope that helps...

[@ikramsghaier5476]

Hi can anyone help me to group a barplots ?? ANY HELP I'LL BE EXTREMELY GRATEFULL

[@marinstatlectures]

Hi +Ik ram , we have another videos showing how to make grouped bar plots...stacked, or side-by-side...you can check that out here: kzbin.info/www/bejne/qJ2UpXVvpZh5gsk

[@zae5pm]

where is pie chart %

[@jrippee05]

You have allot of knowledge about R but don't forget who your audience might be.