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55 lines
1.3 KiB
55 lines
1.3 KiB
% Generated by roxygen2: do not edit by hand
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% Please edit documentation in R/geom_encircle.r
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\name{geom_encircle}
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\alias{geom_encircle}
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\title{encircle}
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\usage{
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geom_encircle(mapping = NULL, data = NULL, stat = "identity",
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position = "identity", na.rm = FALSE, show.legend = NA,
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inherit.aes = TRUE, ...)
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}
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\arguments{
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\item{mapping}{mapping}
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\item{data}{data}
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\item{stat}{stat}
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\item{position}{position}
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\item{na.rm}{na.rm}
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\item{show.legend}{show.legend}
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\item{inherit.aes}{inherit.aes}
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\item{...}{dots}
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}
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\value{
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adds a circle around the specified points
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}
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\description{
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encircle
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}
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\examples{
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d <- data.frame(x=c(1,1,2),y=c(1,2,2)*100)
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(g0 <- ggplot(d,aes(x,y))+geom_point()+
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geom_encircle(s_shape=1,expand=0)+
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geom_encircle(s_shape=1,expand=0.1,colour="red")+
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scale_x_continuous(expand=c(0.5,1))+
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scale_y_continuous(expand=c(0.5,1))+
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geom_encircle(s_shape=0.5,expand=0.1,colour="purple"))
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g0 + geom_encircle(data=subset(d,x==1),colour="blue",spread=0.02)+
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geom_encircle(data=subset(d,x==2),colour="cyan",spread=0.04)
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g0 <- ggplot(mpg, aes(displ, hwy)) + geom_point()
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(g1 <- g0 + geom_encircle(data=subset(mpg,hwy>40)))
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ss <- subset(mpg,hwy>31 & displ<2)
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g1 + geom_point(data=ss,colour="blue")+
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geom_encircle(data=ss,colour="blue",s_shape=0.9,
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expand=0.07)
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}
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\author{
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Ben Bolker
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}
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