[R GGPLOT2中心对齐多行标题

Question

如果我有一个标题，进入

... + 
ggtitle('Something\nSomething Else\nSomething Else') 

有没有什么办法可以让每一行居中对齐，而不是左对齐的中心？

...+ 
theme(plot.title=element_text(hjust=0.5)) 

给我中间的文字，但左对齐。

Answer 1

将这项工作对你来说，

# install.packages("ggplot2", dependencies = TRUE) 
require(ggplot2) 

DF <- data.frame(x = rnorm(400)) 
m <- ggplot(DF, aes(x = x)) + geom_histogram() 
m + labs(title = "Vehicle \n Weight-Gas \n Mileage Relationship \n 
       and some really long so that you can seee it's centered") + 
    theme(plot.title = element_text(hjust = 0.5)) 

有关的情节标题错别字对不起...