在ggplot2中添加坐标轴和标签r

Question

以下是数据。

X <- 1:10 
Y <- rnorm (length(X), 5, 2) 
ticks <- data.frame (t = c(5, 8, 9), l = c(1:3)) 

plot (X, Y, xaxt = "n") 

axis(1, at = ticks$t, labels = ticks$l) 

我想在ggplot2中做类似的工作。我该怎么办呢

Answer 1

library(ggplot2) 

X <- 1:10 
Y <- rnorm (length(X), 5, 2) 
ticks <- data.frame (t = c(5, 8, 9), l = c(1:3)) 

df <- data.frame(X, Y) 


p <- ggplot(data=df, aes(x = X,y = Y)) 
p <- p + scale_x_continuous(breaks=c(ticks$t), 
          labels=c(ticks$l)) 
p <- p + geom_point() 
p <- p + theme_bw() 
p 

希望这有助于。