[R] Error unary operator

[Jeff Newmiller]

a) not reproducible, read the posting guide
b) there is actually a forum dedicated to ggplot2 where you would get better answers
c) I have not had luck providing an expression as the data argument to ggplot.
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Sent from my phone. Please excuse my brevity.

Jean Jang <jeanwaijang at gmail.com> wrote:

>Hi R - listers,
>
>I am receiving an error. Does anyone know what this means? J
>
>ggplot(subset(foo, Rayos != "Rayos.NA"), aes(x=HTL, y=DevelopIndex,
>colour=TotalEggs)) +geom_point() +geom_jitter() +  
>facet_grid(Aeventexhumed ~ Rayos)
>+ geom_smooth(method="lm", fill=NA) + ylim(c(0, 7))
>
>
>Error in +geom_smooth(method = "lm", fill = NA) :
>   invalid argument to unary operator
>	[[alternative HTML version deleted]]
>
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>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.