Building off of @shadow's answer, here's how you can manually change the x-axis labels. I also threw in a couple other changes which help improve the look of the graph and legend:
colorder <- c( "green", "orange", "red", "blue")
bplot<-ggplot(temp, aes(Lineage, RPKM)) +
geom_boxplot(aes(fill=factor(Lineage))) +
geom_point(aes(colour=factor(Lineage))) +
scale_color_manual(breaks=colorder, # color scale (for points)
limits=colorder,
values=colorder,
labels=c("hESC1","hESC2","hESC3","hESC4"),
name="Group") +
scale_fill_manual(breaks=colorder, # fill scale (for boxes)
limits=colorder,
values=colorder,
labels=c("hESC1","hESC2","hESC3","hESC4")
name="Group") +
scale_x_discrete(limits=colorder,labels=c("hESC1","hESC2","hESC3","hESC4")) +
theme_bw()
Adding the labels
option to the scale_x_discrete
layer of the plot allows you to change the axis labels. Adding labels
to both scale_fill_manual
and scale_color_manual
allows you to change the legend labels. Adding name
to both lets you change the legend heading. Finally, I added theme_bw()
to the plot to make the background white and add a border around the plot. Hope that helps!