Set color of the boxes in a boxplot-CodePudding

hist <- ggplot(df, aes(x = A,fill = ("red")))   
  geom_bar()   
  theme_minimal()   
  ggtitle("Treatment")   theme(legend.position = "bottom", plot.title = element_text(hjust=0.5), text = element_text(size = 20))   
  scale_fill_manual("A", values = c("0" = "dodgerblue4", "1" = "chocolate"))
    
hist

I need help regarding setting the colors of the boxplots from the ggplot2 package which I am learning right now. I want the left one to be in the blue color and the right one in the other color. But unfortunately I cannot figure out how to set these instead this code just sets the right colors in the Legend and leaves the boxes unchanged?!

CodePudding user response：

Not enough code for me to know exactly what you're doing but I think if you remove:

mapping = aes(fill = "red")

it will solve your problem. A reprex would help others better understand your problem. I think instead you might need something like:

    ggplot(data = your_data)  
    geom_bar(mapping = aes(x = variable_1, y = variable_2, fill = variable_3), position = "dodge")

CodePudding user response：

Like Rene said it is a bit hard to help while not seeing the dataset. Looking at the given code your A contains two values you want to color individually define a vector containing those two values:

df_colors <- c("0" , "1")

hist <- ggplot(df, aes(x = A, fill = df_colors ))   
  geom_bar()   
  theme_minimal()   
  ggtitle("Treatment")   theme(legend.position = "bottom", plot.title = element_text(hjust=0.5), text = element_text(size = 20))   
  scale_fill_manual("A", values = c("0" = "dodgerblue4", "1" = "chocolate"))