ggplot2 change axis labels

Today, I will try to change the labels of the x and y axis.

library(ggplot2)
# producing some data
data <- data.frame(x=1:10, y=rnorm(10))
# initiating a plot
p <- ggplot(data, aes(x,y))
# plotting it with different labels for both x and y.
p + geom_point(aes(size=y)) + scale_x_continuous("x axis") + scale_y_continuous("y axis")
# changing the tick intervalls on the x-axis
p + geom_point(aes(size=y)) + scale_x_continuous("x axis",breaks=c(1,5,10)) + scale_y_continuous("y axis")
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