Change name of point labels in

Question

I know how to add point labels when using ggplot2 using geom_text()

p <- ggplot(mtcars, aes(x=wt, y=mpg, label=rownames(mtcars)))
p + geom_text()

But what if I want to change "Fiat X1-9" to "WORST CAR EVER" without changing the entries in the original dataframe? Is there a way to rename the point in the plot within geom_text()?

Thanks much.

The `label` argument can take in new names. – Pierre L Sep 22 '16 at 13:49 — Pierre L, Sep 22 '16 at 13:49

Pierre L · Accepted Answer · 2016-09-22T19:34:11.993

1

You can override the aesthetic or use it in the initial expression:

nms <- rownames(mtcars)
p + geom_text(aes(label = replace(nms, nms == "Fiat X1-9", "Worst Car Ever")))

Edit

If you do not want to create a new object you can use this. But as a point of advice, don't become too attached to one-liners. They are fun, but sometimes creating an object is the best for readability, debugging, and accuracy.

p + geom_text(aes(label = replace(rownames(mtcars), rownames(mtcars) == "Fiat X1-9", "Worst Car Ever")))

edited Sep 22 '16 at 19:34

answered Sep 22 '16 at 13:53

Pierre L

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Thanks. I was hoping for a way to do it without creating any additional items (nms), but that works. Much appreciated. – Emilio M. Bruna Sep 22 '16 at 19:10
1

You don't have to create the extra object. It's only for looks. – Pierre L Sep 22 '16 at 19:31

Change name of point labels in

1 Answers1