r - Multiple line diagrams in the same ggplot -

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i creating line diagrams data. know how add line (with second set of recall , precision points) in same diagram?

recall11point    = c(0.2, 0.2, 0.4, 0.4, 0.4, 0.6, 0.6, 0.6, 0.8, 1.0) precision11point = c(1.0, 0.5, 0.67, 0.5, 0.4, 0.5,0.43,0.38,0.44,0.5) d = data.frame("recall" = recall11point, "precision" = precision11point);  # old fashioned plotting #plot(y=precision11point, x=recall11point, type="l")  ggplot(data=d, aes(x=recall, y=precision)) +   geom_line(size=2, colour="red") +   geom_point(size=10) 

d = data.frame(  "recall" = c(0.2, 0.2, 0.4, 0.4, 0.4, 0.6, 0.6, 0.6, 0.8, 1.0)                , "precision" = c(1.0, 0.5, 0.67, 0.5, 0.4, 0.5,0.43,0.38,0.44,0.5)                ,  "recall2" = seq(0,0.9, = 0.1)                ,  "precision2" = seq(0,0.9, = 0.1) )  library(ggplot2)  ggplot(data=d) +   geom_line(aes(x=recall, y=precision), size=1, colour="red") +   geom_point(aes(x=recall, y=precision), size=5, color = "red") +    geom_line(aes(x=recall2, y=precision2), size=1, colour="blue") +   geom_point(aes(x=recall2, y=precision2), size=5, colour="blue") +   theme_bw() +    theme( panel.grid.minor = element_blank(), panel.grid.major = element_blank() )

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