Error: could not find function "opts"

[Simon Han]

> library(ggplot2)
> facebookData <- read.delim("FacebookNarcissism.dat",  header = TRUE)
>
> graph <- ggplot(facebookData, aes(NPQC_R_Total, Rating))
> graph + geom_point() + opts(title = "geom_point()")
Error: could not find function "opts"

What's wrong?

[Adriano Fantini]

opts() has been deprecated a long time ago. Use theme() options.

For setting a title, use ggtitle()

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[Brandon Hurr]

You are using very old ggplot2 code. opts() has long been deprecated. 

labs() is the easiest way to change plot labels:

http://docs.ggplot2.org/current/labs.html

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[Simon Han]

labs() is working. Thanks.