[Solved] Plotting two scatter plots and regression lines with error bars on same plot using ggplot2 [closed]

by


ggplot2 is my favourite R package, so here is how I would solve this:

df = data.frame(difficulty = 2 + (runif(200) * 6),
                ID = rep(c("point", "bubble"), each = 100))
df$movement = rep(c(1.2, 1.4), each = 100) * df$difficulty + (runif(200) / 5)

library(ggplot2)
theme_set(theme_bw())
ggplot(df, aes(x = difficulty, y = movement, color = ID, shape = ID)) + 
    geom_point() + 
    stat_smooth(method = 'lm')

enter image description here

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solved Plotting two scatter plots and regression lines with error bars on same plot using ggplot2 [closed]