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

[@jacoposangiovanni]

I have no words, these lessons get better and better from one another. The way you explain every concept, and the way in which you remark every important information is simply astonishing. I'm learning my way in R and ggplot at a surprising speed all thanks to you.
Again, no words. Keep up and thank you for your work.

[@RProgramming101]

thank you so much for the lovely feedback - MUCH appreciated :)

[@LiahBrussolo]

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

[@Pontustilrem]

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

[@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!!

[@bangsdidik123]

Superb

[@Николай-щ2ц7з]

Will you talk about spatial analysis?

[@StockSpotlightPodcast]

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

[@kumarsatyam1173]

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

[@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!!

[@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!!)

[@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”.

[@JoshGuilbert]

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.

[@bping123]

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

[@RProgramming101]

Welcome aboard!

[@missbeekay9938]

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

[@tbaerg]

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

[@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?

[@AmerikiDork]

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

[@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!!

[@ilovezac_]

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

[@lukeskinner6877]

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

[@RProgramming101]

More to come!

[@alifarooq1464]

ggsave doesn't work now, any solution

[@gsbarlow4]

Do you have a video on a Pareto Chart already?

[@石矻]

how to plot bar and scatter in the one pictrue?

[@吴建-i5y]

Awesome looking forward to more videos thanks a lot

[@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.

[@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.

[@apdcarson4490]

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

[@rodolfodelgadillocastaneda9722]

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

[@patrickrankin184]

Thank you for all the great videos

[@RProgramming101]

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

[@me_shristythapa5667]

histogram 12:22

[@bkarim7349]

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

[@hirashahzad2816]

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

[@faisala.alghazwi8502]

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

[@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

[@sammytw1129]

thanks. you made it a lot easier.

[@RProgramming101]

Glad it helped!

[@JoseGonzalezUwU]

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

[@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.

[@ninafulep4707]

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

[@fridab6082]

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

[@sajedehrastgoo2142]

great and useful video on ggplot. 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.

[@mibo747]

Many thanks for IDEAL presentation

[@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!

[@poonamsingh312]

This is very helpful video. Thank you !!

[@parkjiji6701]

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

[@RProgramming101]

So nice of you

[@shivmanidubey3119]

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

[@RProgramming101]

more coming

[@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

[@Trafficfromsky]

Great content

[@TheMISBlog]

Very Useful, Thanks

[@RProgramming101]

You are welcome

[@araque9789]

INCREDIBLE VIDEOS!!!! AMAZING

[@RProgramming101]

Glad you liked it!

[@veroniquemigue7985]

Thank you Greg!

[@RProgramming101]

My pleasure!

[@H0tinNYC]

Awesome!

[@RProgramming101]

Thanks!