Bar charts and Histograms using ggplot in R

To create a bar chart or histogram using ggplot is easy. Bar charts (or bar graphs) are used to visualise a single categorical variable. Histograms are used to visualise a single numeric variable. Ggplot2 is a powerful package used for data visualisation in R programming. So if you're into data science, statistics or any other quantitative analysis and you're learning to use R, then I recommend that you learn ggplot. This is part of the series: R programming for beginners. ggplot is sometimes referred to as ggplot2

[@RProgramming101]

Get my FREE cheat sheets for R programming and statistics (including transcripts of these lessons) here: www.learnmore365.com/courses/rprogramming-resource-library

[@meronghirmay4960]

Frankly, one of the best tutorials for R. Thank you for making Visualization with R very easy.

[@RProgramming101]

Wow - what a nice thing to say (thanks!!)

[@6toolbaseball]

Incredible intro! Keep the videos coming and would love to see more videos on organizing the bars by frequency since that is typically how senior management wants to see the data visualized

[@V39167]

This is so so helpful, I wasn't aware of being careful about which NAs I'm dropping. I got introduced to the pipe operator in some of your previous videos and I'm just loving it!! I agree that it's really nice to use the pipe operator with ggplot. Thanks for the great videos!!

[@kumarsatyam1173]

Amazing videos on ggplot. I really love the passion with which you teach. Goes to show how much you enjoy this!

[@AmerikiDork]

I love these videos. This makes R seem very intuitive and user friendly.

[@LiahBrussolo]

Very clear explanation of the meaning of each bit of code, thank you!

[@faisala.alghazwi8502]

I think it's time for me to get back and learn R. you sure seem to explain well for beginners. Subscribed

[@FitnessAndLifeWithLaShelle]

You've answered 50 questions that were floating around in my head in the first 6mins of the video! God bless!

[@RProgramming101]

Most welcome! Glad you liked it!

[@tbaerg]

fantastic video. I'm quite guilty of being over enthusiastic with my drop_na; so this was a great reminder. Kudos!

[@bping123]

Thanks Greg - just subscribed. Hopefully we will have a steady stream of content as you are an excellent educator!

[@RProgramming101]

Welcome aboard!

[@user-fv7li9fx8l]

Awesome looking forward to more videos thanks a lot

[@lukeskinner6877]

Thank you for these videos they are very well explained at a great pace, please keep making more!

[@RProgramming101]

More to come!

[@fridab6082]

your videos are so useful for getting started! thank you!!

[@bkarim7349]

Thanks Greg - I really appreciate your videos. very good content and excellent presentation. good contunation

[@Pontustilrem]

Thanks for a great lesson. Any possibility of showing how to extract data for doing a chisquare test in R?

[@JoseGonzalezUwU]

Muy buen video me encanto, explicas las cosas de una manera tan sencilla, un saludo desde Argentina

[@mariapapanikolaou7038]

You're great and inspiring!! You help a lot! But... could you please tell what code I should add so that the number of cases in the y axis is not presented in scientific form?

[@sajedehrastgoo2142]

great and useful video on ggplot. thanks a lot.

[@mibo747]

Many thanks for IDEAL presentation

[@skyxu8634]

this video is help for me!! I'm a year 3 unverisity students, this semester I have a data analysis course and that was really hard for me. looking for video about using R to inference the data~ Thanks!!

[@poonamsingh312]

This is very helpful video. Thank you !!

[@carmenwhitehouse9825]

Fantastic videos, you have made my life a lot easier. Could you perhaps create a video on how to create contingency tables, unless I have missed it. We use them quite often in epidemiology.

[@RProgramming101]

Great suggestion - thank you!!

[@user-jq8qj7vp6r]

Is there a way easy way to pool count data by week but label by month?
So if count data of the number of red cars seen in a parking lot each day, the plot you end up with is 56 bars, each bar is a 7 days but the tick marks at the bottom are for the start of each month.

[@ninafulep4707]

great video! how do you reorder the order of the barchart?

[@patrickrankin184]

Thank you for all the great videos

[@RProgramming101]

I'm glad you enjoyed the video! Your positive feedback means a lot to me.

[@user-cg8ey9rv4u]

how to plot bar and scatter in the one pictrue?

[@minhashussain7722]

In my laptop the piped in %>% function can't work. Error: unexpected SPECIAL in "%>%" comes always

[@SamadAli-rf1un]

Thanks Greg for the amazing video on ggplot in R Studio, I likes to know can i pass multiple variables in drop_na like drop_na(vore, sleep_rm) or do i have to use %>% and then use drop_na(sleep_rm) in next line. also likes to know that ggplot() is a function from tidyverse package and ggplot2 is a pakcage in tidyverse.

[@gsbarlow4]

Do you have a video on a Pareto Chart already?

[@lindasturm-flores6752]

Thanks for another good lesson in R.
I would like to see a video on ANOVA in R. Thanks again!

[@RProgramming101]

Coming soon!

[@lindasturm-flores6752]

@@RProgramming101 Yay! Thank you

[@hirashahzad2816]

please make a video on ChAMP: 450k Chip Analysis Methylation Pipeline

[@user-hu1sn5or7j]

Will you talk about spatial analysis?

[@missbeekay9938]

I wish you could help me right now. This R Studio is tough!

[@alifarooq1464]

ggsave doesn't work now, any solution

[@Trafficfromsky]

Great content

[@madwilli3205]

For some reason I don't get the scale on the y axis, I double checked my code and it looks like I included everything. But anyway thanks for these videos, feel like I am getting the hang of it little by little.

[@parkjiji6701]

thank u for this video, it's really helpful
waiting for u're news video

[@RProgramming101]

So nice of you

[@sammytw1129]

thanks. you made it a lot easier.

[@RProgramming101]

Glad it helped!

[@veroniquemigue7985]

Thank you Greg!

[@RProgramming101]

My pleasure!

[@bangsdidik123]

Superb

[@rodolfodelgadillocastaneda9722]

EXCELENTE , ME GUSTARÍA QUE LO HICIERAS USANDO ANOVA …… MUCHAS GRACIAS POR LA APORTACIÓN

[@araque9789]

INCREDIBLE VIDEOS!!!! AMAZING

[@RProgramming101]

Glad you liked it!

[@TheMISBlog]

Very Useful, Thanks

[@RProgramming101]

You are welcome

[@gustavkrogsbygaard3254]

I might have missed something, but it looks like you're plotting the hours 'awake' and calling that axis 'Total sleep'. What am I missing, or did you perhaps mistake the two?

[@gustavkrogsbygaard3254]

If I were to be cheeky, I'd say you might have needed a bit more sleep! But your videos are great, thanks a lot.

[@karmawangmo6157]

The video is great. Do you have video on GLMM? Will be great to have as I am a beginner

[@RProgramming101]

Will see what I can do.

[@H0tinNYC]

Awesome!

[@RProgramming101]

Thanks!

[@shivmanidubey3119]

please please make some more videos on statistics using ggplot2!!!!

[@RProgramming101]

more coming

[@apdcarson4490]

i've been running the exact same code for 6 hours now, too many errors. Cant get past vore.

[@me_shristythapa5667]

histogram 12:22

[@kirghizcha]

Greg martin ggplot 2 variables

[@zephirinsomda473]

Very good presentation. I would like to get some command that can allow us to get slide by slide using frequencies of two categorical variable. Thank ahead

[@ilovezac_]

You're the worst bro, i learnt nothing!!

[@lupaitaliana]

Very nice video! I have a question about the dependent variable. Which one is automatically chosen by gglpot for this data frame? There is no specification of the y ais, so I wonder how can I get ggplot to select the “right one”.