Can't change the name of the legend

Question

I have a dataset like these

Region	Greenspace	Bluespace
North	30	5
South	50	10
West	15	2
East	10	1

data <- data.frame (  stringsAsFactors = FALSE,
  Region = c("North", "South", "West", "East"),
  Greenspace = c(30,50,15,10),
  Bluespace = c(5,10,2,1)
)

I want to create a histogram showing the regions in the x-axis and percentage in the yaxis. I used that code

data %>% pivot_longer(cols = Greenspace:Bluespace) %>% ggplot(aes(x = Region, y = value, fill = name)) + geom_col(position = 'dodge') + ggtitle("Contrast between 4 different region areas for Greenspace and Bluespace") + xlab("Region") + ylab("percentage")+ scale_fill_manual(values=c("blue", "dark green"))

Now the problem is instead of name i want space in the legend. I change fill into name but got error message could not find space.

But the problem is i don't want name, I want space

Has anyone an idea how to fix it. I appreciate every help :)

`scale_fill_manual(values=c("blue", "dark green"), "space")`? — Julian, Aug 23 '22 at 14:49

JBGruber · Accepted Answer · 2022-08-23T15:04:11.707

That's what labs is for. You can assign names to the different aesthetics, which will then be shown as the title of this aesthetic:

library(tidyverse)
data %>% 
  pivot_longer(cols = Greenspace:Bluespace) %>% 
  ggplot(aes(x = Region, y = value, fill = name)) + 
  geom_col(position = 'dodge') + 
  ggtitle("Contrast between 4 different region areas for Greenspace and Bluespace") + 
  scale_fill_manual(values = c(Bluespace = "blue", 
                               Greenspace = "dark green")) +
  labs(x = "Region", y = "percentage", fill = "space")

^{Created on 2022-08-23 by the reprex package (v2.0.1)}

I think this becomes clear when looking at the x and y aesthetic, which you labeled using the special functions xlab and ylab. If you put this within labs the axis titles change. As a side note, you can remove the title of an aesthetic by setting, for example, labs(fill = NULL) or labs(fill = "").

Can't change the name of the legend

1 Answers1