r - editing the legend on geom_text() -

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i never have trouble editing legend ggplot, geom_text seem having trouble.

<- ggplot(threedusg, aes(x=dxrapm, y=x3par, label=threedusg$player)) + geom_text(aes(size=threedusg$cs3,hjust=0,vjust=0)) + scale_x_continuous(limits=c(0,6))

here legend looks like http://imgur.com/h6vzn2b

the size of text comes data percentages. prefer have text in legend read actual percentages. instance says .30 instead of 30%. appreciated!

using scales library (which need explicitly load), can use percent labeller. (note shouldn't referencing columns of data set using $ within ggplot call.

library(scales)  ggplot(threedusg, aes(x = dxrapm, y = x3par, label = player)) +   geom_text(aes(size = cs3), hjust = 0, vjust = 0) +   scale_x_continuous(limits = c(0,6)) +   scale_size(label = percent)

on reproducible example

foo <- data.frame(x=1:5,y=1:5,player=letters[1:5],rate = c(0.2,0.5,0.7,0.1,0.8)) ggplot(foo, aes(x=x,y=y,label=player)) +    geom_text(aes(size=rate)) +    scale_size(label = percent)

enter image description here


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