trouble with labeling axis with strings using ggplot (R)-CodePudding

I'm a college student and we have to create some graphs using Rstudio for an assignment. I've managed to do the core objective for this first task, which is to create a simple bar graph with the provided data; however, I'm having trouble with labeling the axes with the desired text.

Here's the code:

library (ggplot2)

Country = as.factor(c("slovakia", "iceland", "lithuania"))
Waste = c(2.0, 3.7, 2.1, 2.3, 1.7, 2.5)
Year = as.factor(c("2004", "2018"))

data = data.frame(Country, Waste, Year)

ggplot(data,                                    
       aes(x = Country,
           y = Waste,
           fill = Year))  
  geom_bar(stat = "identity",
           position = "dodge") 
 xlab("Country")
   ylab("Tons of waste per capita")

This is the output:

But I want the axis labels to have this specific text (made with Word):

Please note that we were specifically asked to use ggplot.

CodePudding user response：

With ggplot2, you have to use at the end of your line of code to add additional layers to your plot. If not, then R just reads those lines of code as standalone lines, which will throw an error. So, in your code, the sign is missing at the end of geom_bar and xlab, which means the x and y label lines are never added to your plot.

library(ggplot2)

ggplot(data,                                    
       aes(x = Country,
           y = Waste,
           fill = Year))  
  geom_bar(stat = "identity",
           position = "dodge")  
xlab("Country")  
ylab("Tons of waste per capita")

Output

Data

data <- structure(list(Country = structure(c(3L, 1L, 2L, 3L, 1L, 2L), class = "factor", levels = c("iceland", 
"lithuania", "slovakia")), Waste = c(2, 3.7, 2.1, 2.3, 1.7, 2.5
), Year = structure(c(1L, 2L, 1L, 2L, 1L, 2L), class = "factor", levels = c("2004", 
"2018"))), class = "data.frame", row.names = c(NA, -6L))