ggplot2 change legend title in this particular example
ggplot2, legend, r, title
Solution
the `scale_XX` accept a `name` argument that you can adjust:
scale_shape_manual(name = "Sample", values=c(21,22)) +
scale_fill_manual(name = "Sample", values=c("deepskyblue1","yellow"))
If you don't pass it into both scales, it creates two separate legends by default apparently.
You could alternatively do the `reoder()` bit before passing into your plotting code.
See here for details.
Problem
I have tried many suggestions but none fit this particular simple example. How would I change the legend title to Sample? ``` df1 <- data.frame( Order = c(1,1,2,2), Tissue = c("Bladder","Pancreas","Bladder","Pancreas"), Sample = c("WT","WT","Mutant","Mutant"), Percent = c(94.12,55,5.88,45) ) ggplot(data = df1, aes(x = Tissue, y = Percent, group = Sample)) + geom_point(aes(shape=reorder(Sample,Order), fill=reorder(Sample,Order)), size = 6) + scale_shape_manual(values=c(21,22)) + scale_fill_manual(values=c("deepskyblue1","yellow")) ``` Thank you.