r - ggplot2: plot all attributes per id -

i have survey each line represents person , each column represents how long took complete survey

i plot dot per timing per person if example person completed first part x1 in 10 minutes , second part x2 in 12 minutes, third part in 15 minutes x3 , fourth part in 45 minutes x4 id 1 have these 4 dots on y axis id x axis point

id <- sample(1:12) x1 <- sample(1:250, 12, replace=f) x2 <- sample(1:250, 12, replace=f) x3 <- sample(1:250, 12, replace=f) x4 <- sample(1:250, 12, replace=f)  mydf <- data.frame(id,x1,x2,x3,x4) 

i tried using ggplot specified x axis id im not sure how represent other columns different counts

does know if possible

any great

i believe need melt data.frame first , construct desired plot.

library(reshape2) melted <- melt(mydf, id.vars = "id") # melt data # generate plot library(ggplot2) ggplot(melted, aes(factor(id), value, colour = variable)) +         geom_point()