Customize Bar plot in R -GGplot2- in 5 steps : Beautiful publication ready bar plot

#barplot #errorbars #ggplot2 #Rprogramming
#R #datavisualisation #Rprogramming #ggplot #datanalysis #barplotcustomisation

This video discuss customisation of barplot in ggplot2 R. Reordering of categories, adding error bars, plot titles, themes and color palletes have been discussed.

library(tidyverse) # for summarizing the data to get means and sds of categories
library(ggsci) # for color palettes of scieintifc journals
library(ggpubr) # for theme pubr

iris_plot = gather(iris,FlPrt,Length,1:4)

iris_plot= group_by(iris_plot, Species,FlPrt)

iris_plot=summarise(iris_plot,mnL=mean(Length),sdL=sd(Length))

iris_plot= ggplot(iris_plot,aes(reorder(Species,mnL),mnL,fill=reorder(FlPrt,mnL)))+
geom_bar(stat="identity",position="dodge")+
geom_text(mapping=aes(label=mnL),position=position_dodge(width=0.9),
cex=2.5,vjust=-4)+
labs(title="Iris: Measurment of floral organs",
subtitle="Length abd width of srpal abd petal",
x="Species",y="Length ib cm",
caption="Data: iris dataset by Edgar Anderson",fill="Description")+
geom_errorbar(mapping=aes(ymin=mnL-sdL,ymax=mnL+sdL),
width=0.2,position=position_dodge(width=0.9))+
theme_classic()+scale_fill_jco()

0:00 Introduction
0:49 Install and load required packages
1:34 Prepare data
2:34 initiate ggplot
3:36 Reorder categories of bars
4:56 Add value labels to bars
6:02 titles of plot elements
7:05 Add error bars
8:39 add theme to plot
10:16 Add color palettes
11:20 concluding remarks

[rapperiiz]

Really easy to digest. Thank you so much

[xdclfew]

Thank you, sir, for steering me in the right direction with many of these topics. Your videos are clear and have been very helpful. Thank you so much.

[sarahasadraza]

struggled for a long time trying to make my bar plots, this helped me a lot ! subscribed !

[niceday]

Thanks a lot, very informative tutorial. This Really helps!

[garethomarrostroalonso]

Thanks to you sir. I will have a beautiful bar plots! Regards from México

[shivamshinde]

explained really well !! Thank you sir

[prititigga]

Respected Sir, I want to let you know that how much I am thankful for your videos and really appreciate your efforts for teaching us. Thank you so much sir. May god bless you with good health and success !

[azharulislam]

Dear Sir, your tutorial helped me lot within 11 minutes. I am a very beginner in r studio, just shifted from excel to R for preparing graphs. It will be nice if you make a video or any recommendation regarding my two problems. 1. I want to show the plant height increment within 6 months time period at different treatment groups. It will be a group bar plot. How will I create a group bar plot of my own data like customized data that you showed in the tutorial? 2. which theme provides the barplot that has separated x-axis and y-axis, not joint like the theme_classic() ? Thanks

[nitufahmidakhalique]

If i do not use stat identity here, how can I add count on the bar plot by using geom text? could you please explain it?

[tenmeh]

I tried this. But my groups are of different lengths, and the bars of different groups are of different widths. Is there a way to fix that?

[aravindabellanthudawa]

Professor, can you demonstrate how to perform a “distance based Redundancy data analysis (db RDA)” in R ?

[JuniorResearchFellow]

Sir please help me .... after clicking geom_text coding portion it is showing -
Error in 'fortify()':
'data' must be a <data.frame>, or an object coercible by 'fortify()' not an s3 object with class <gg>/<ggplot>.

[ahmedJaber]

suppose you got sales data.

you got items sold, their quantity and value

if I were in excel I would make a bar plot for the value, i.e. sales value, and volume/quantity of items sold as line chart combined with the previous but the latter would use a secondary axis

now, I know such a thing is possible by mapping different data to different geoms but I am facing an issue visualising the quantity on a line chart

any ideas?
x-axis would have categorical labels and the other numeric

[jtmasombuka]

Hi, Which color pallete(theme) is suitable for color blind audience?

[asmodesustudi]

sir my x-axise is getting arrange alphabetically not according to the csv fill

[jtmasombuka]

Hi which color pallete can I use for color blind people?