Hello,
Inline.
Em 17-12-2012 15:44, soon yi escreveu:
Hi
Yes i had look at this but it doesnt quite do what i am wanting. I do not
want the smoothed line to be coloured, or dependant on a factor or the
default blue.
An example,
library(ggplot2)
df<-data.frame(y=rnorm(100,30,10),x=rnorm(100,20,5),treat=factor(rbinom(100,1,0.5)))
p1<-ggplot(df, aes(x=x, y=y,group=treat)) + theme_bw() +
geom_smooth(aes(linetype=treat),method="lm", se=FALSE,
fullrange=T,size=1)
+
geom_point(aes(shape=treat),size=3) +
scale_shape_manual(values=c(1,16))
p1
The fitted lines are blue - whereas i wish them to be black.
Adding colour="black" into the geom_smooth aesthetic does not change the
line colour to black.
Yes it does. But add to geom_smooth, _outside_ the aesthetic.
p1 <- ggplot(df, aes(x=x, y=y, group=treat)) +
theme_bw() +
geom_smooth(aes(linetype=treat), colour="black", method="lm",
se=FALSE, fullrange=T, size=1) +
geom_point(aes(shape=treat), size=3) +
scale_shape_manual(values=c(1, 16))
p1
Looks black to me.
Hope this helps,
Rui Barradas
thanks, sy
soon yi wrote
Hi
I am using geom_smooth to fit linear regression lines over a scatterplot
for two treatment groups. The default colour for the two lines are blue. I
have been unable to change this with the usual options. A search online
has not suggested any solution / work around.
Is there a solution to this?
many thanks, sy
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