Change bar plot colour in geom_bar with ggplot2 in r

by

If you want all the bars to get the same color (fill), you can easily add it inside geom_bar. 

ggplot(data=df, aes(x=c1+c2/2, y=c3)) + 
geom_bar(stat="identity", width=c2, fill = "#FF6666")

enter image description here

Add fill = the_name_of_your_var inside aes to change the colors depending of the variable :

c4 = c("A", "B", "C")
df = cbind(df, c4)
ggplot(data=df, aes(x=c1+c2/2, y=c3, fill = c4)) + 
geom_bar(stat="identity", width=c2)

enter image description here

Use scale_fill_manual() if you want to manually the change of colors.

ggplot(data=df, aes(x=c1+c2/2, y=c3, fill = c4)) + 
geom_bar(stat="identity", width=c2) + 
scale_fill_manual("legend", values = c("A" = "black", "B" = "orange", "C" = "blue"))

enter image description here

More Related Contents:

  1. Creating a vertical color gradient for a geom_bar plot
  2. Stacked bar chart
  3. Manually setting group colors for ggplot2
  4. Plot with conditional colors based on values in R [duplicate]
  5. Create discrete color bar with varying interval widths and no spacing between legend levels
  6. ggplot bar plot with facet-dependent order of categories
  7. ggplot2 geom_bar – how to keep order of data.frame [duplicate]
  8. customize ggplot2 axis labels with different colors
  9. asymmetric color distribution in scale_gradient2?
  10. How to fill geom_polygon with different colors above and below y = 0 (or any other value)?
  11. ggplot2 and a Stacked Bar Chart with Negative Values
  12. Fill and border colour in geom_point (scale_colour_manual) in ggplot
  13. How do I change the color value of just one value in ggplot2’s scale_fill_brewer?
  14. Stacked barplot with colour gradients for each bar
  15. ggplot2: How to specify multiple fill colors for points that are connected by lines of different colors
  16. Is it possible to define the “mid” range in scale_fill_gradient2()?
  17. How to add frequency count labels to the bars in a bar graph using ggplot2? [duplicate]
  18. Different colours of geom_line above and below a specific value
  19. Increase resolution of color scale for values close to zero
  20. geom_text how to position the text on bar as I want?
  21. Generate paired stacked bar charts in ggplot (using position_dodge only on some variables)
  22. How to fill with different colors between two lines? (originally: fill geom_polygon with different colors above and below y = 0 (or any other value)?)
  23. ggplot2: Setting geom_bar baseline to 1 instead of zero
  24. How to make variable bar widths in ggplot2 not overlap or gap
  25. Bars in geom_bar have unwanted different widths when using facet_wrap
  26. Consistent color scale and legend between plots when not all levels of a grouping variable are present in the data
  27. Connect stack bar charts with multiple groups with lines or segments using ggplot 2
  28. ggplot2: Fix colors to factor levels
  29. R – ggplot line color (using geom_line) doesn’t change
  30. ggplot scale color gradient to range outside of data range

Leave a Comment