Change color of overlayed bar graphs ggplot2

Question

I've plotted two bar graphs on top of each other using the following:

library(ggplot2)
library(reshape2)


x = c("type1", "type2", "type3")
y1 = c("1","2","3")
y2 = c("2","3","4")

to_plot <- data.frame(x=x,y1=y1,y2=y2)
melted<-melt(to_plot, id="x")

ggplot() + geom_bar(data=melted,aes(x=x,y=value,fill=variable),stat="identity",position = "identity", alpha=.3)

This gave me the following output:

Is there anyway I can change the color of the bar graphs? For example, I would like the y1 graph to be the same grey as the background

Please read [How to make a great reproducible example in R?](https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example) — M--, Jun 16 '17 at 14:59
`scale_fill_manual("legend", values = c("y1" = "gray", "y2" = "orange"))` — M--, Jun 16 '17 at 15:33

score 1 · Accepted Answer · answered Jun 16 '17 at 15:32

1

ggplot() + geom_bar(data=melted,aes(x=x,y=value,fill=variable),
                    stat="identity",position = "identity", alpha=.3) +
  scale_fill_manual(values=c("#955599", "#E63F00"))

You can now play with the palette (-;

answered Jun 16 '17 at 15:32

Bram

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:D :D Thank you! Play, I shall – cosmictypist Jun 16 '17 at 15:36
`myplot + scale_fill_manual(values=c("gray", "lightblue")) + theme_gray()` If you don't want to play – M-- Jun 16 '17 at 15:39

Change color of overlayed bar graphs ggplot2

1 Answers1