[R] Custom manual legend in ggplot2

Ronaldo Reis Júnior chrysopix at gmail.com
Wed Dec 9 16:11:23 CET 2015


Now its work, but I dont get to change te legend position. Look:

ggplot(data1, aes(x=x1, y=y1))+
     geom_smooth(method="glm", family="gaussian",aes(linetype="equation1"))+
     geom_smooth(aes(x=x1, y=y1, linetype="equation2"),data=data2, 
method="glm", family="gaussian")+
     scale_linetype_manual(values = 
c("solid","dashed"),name="Equations",labels=c("Equation 1","Equation 
     theme(plot.title = element_text(lineheight=.8, 

Now the legend work, but the argument legend.position="top" in theme() 
function dont work. I try to change the order of commands, but without 

Any idea?


Em 09-12-2015 12:10, Giorgio Garziano escreveu:
> Try to look at the link:
> http://www.cookbook-r.com/Graphs/Legends_(ggplot2)/
> Also consider:
> help(theme)
> legend.background    background of legend (element_rect; inherits from rect)
> legend.margin   extra space added around legend (unit)
> legend.key background underneath legend keys (element_rect; inherits from rect)
> legend.key.size size of legend keys (unit; inherits from legend.key.size)
> legend.key.height    key background height (unit; inherits from legend.key.size)
> legend.key.width     key background width (unit; inherits from legend.key.size)
> legend.text     legend item labels (element_text; inherits from text)
> legend.text.align    alignment of legend labels (number from 0 (left) to 1 (right))
> legend.title    title of legend (element_text; inherits from title)
> legend.title.align   alignment of legend title (number from 0 (left) to 1 (right))
> legend.position the position of legends ("none", "left", "right", "bottom", "top", or two-element numeric vector)
> legend.direction     layout of items in legends ("horizontal" or "vertical")
> legend.justification anchor point for positioning legend inside plot ("center" or two-element numeric vector)
> legend.box arrangement of multiple legends ("horizontal" or "vertical")
> legend.box.just justification of each legend within the overall bounding box, when there are multiple legends ("top", "bottom", "left", or "right")
> --
> GG
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> Prof. Ronaldo Reis Júnior
|  .''`. UNIMONTES/DBG/Lab. Ecologia Comportamental e Computacional
| : :'  : Campus Universitário Prof. Darcy Ribeiro, Vila Mauricéia
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