Thank you very much for the elaborate response, Dr. Barradas! It was
extremely helpful!
This resolves all my queries except one; I am unable to assign aesthetic
colors in a way that the bar and text colors remain the same. I am not
sure how to exactly assign color outside of aes. I used the following
code which made everything red (and I want only text on top of the red
bars to be red, rest to be blue according to their bar colors)
ggplot(aes(x=year, y=percentage, group=gender, fill=gender), data =
graph_text)+
? geom_bar(position = 'dodge', stat='identity')+
? theme_classic()+
? geom_text(aes(label = percentage), size = 5, position =
position_dodge(width = 0.9), vjust=0, color = "Red") +
? scale_y_continuous(limits=c(0, 1.1*ymax))
Thank you very much for your time and help, Dr. Barradas!
On Thursday, 19 August, 2021, 02:07:44 pm GMT-4, Rui Barradas
<ruipbarradas at sapo.pt> wrote:
Hello,
First, sample data.
set.seed(2021)
year <- rep(2016:2019, 2)
percentage <- runif(length(year), 0.25, 0.70)
gender <- rep(c("M", "F"), each = 4)
graph_text <- data.frame(year, percentage, gender)
1) You have expand = c(0,0). Like this there is no space above the
greatest bar. In order to make room, change to limits = c(0, ymax + 10
percent).
2) Make the width of the bars larger, position_dodge(width = 0.9)
3) Assign a aesthetic color in geom_text, if you want the bars and text
colors to be the same, assign a value outside aes() if you want only one
color for the text. See at the end.
4) Not asked but I use scales::percent to make the percentages
automatic. Change back to your code if not needed.
ymax <- max(graph_text$percentage)
ggplot(aes(x=year, y=percentage, group=gender, fill=gender), data =
graph_text)+
? geom_bar(position = 'dodge', stat='identity')+
? geom_text(
? ? aes(label = scales::percent(percentage, accuracy = 0.1), color =
gender),
? ? position = position_dodge(width = 0.9),
? ? size = 5,
? ? vjust = 0
? )+
? scale_y_continuous(
? ? limits = c(0, 1.1*ymax),
? ? labels = scales::percent
? )+
? theme_classic()
The following geom_text will change the text labels color to red.
? geom_text(
? ? aes(label = scales::percent(percentage, accuracy = 0.1)),
? ? position = position_dodge(width = 0.9),
? ? #
? ? color = "red",
? ? #
? ? size = 5,
? ? vjust = 0
? )
Hope this helps,
Rui Barradas
?s 17:52 de 19/08/21, bharat rawlley via R-help escreveu:
> Hello
> I have tried to create the following graph using ggplot2 using the
> ggplot(aes(x=year, y=percentage, group=gender, fill=gender), data =
graph_text)+? geom_bar(position = 'dodge', stat='identity')+
scale_y_continuous(expand = c(0,0))+? theme_classic()+
geom_text(aes(label = percentage), size = 5, position =
position_dodge(width = 0.5), vjust=0)
>
>
> I wanted to ask
> 1) In the last plot why is the label on top not showing up even when
I save the image as a pdf?
> 2) Is there anyway to make the labels appear in the middle of the
bar? It is aligned to the left right now
> 3) Is there any way to change the colour of the labels on the top of
> Thank you!
>
>
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