Question

I have a ggplot chart

q3 <- ggplot(y, aes(T,C))+  geom_line() 

and the kernel density

den <-density(y$C)      

How can I overlay a kernel density chart on the y axis?

Thanks for your help

Answer 1

Following up on DWin’s idea, this might be the sort of thing you’re looking for:

dat <- data.frame(x = 1:100,
                  y = 1:100,
                  z = rnorm(100))

ggplot(dat) + 
    geom_point(aes(x = y/100,y = x/100)) + 
    geom_density(aes(x = z)) + 
    coord_flip()

Note the reversal of the x and y aesthetics in geom_point.