相关疑难解决方法(0)

我想在这样的情节中保持标题的对齐

ggplot(data = economics, aes(x = date, y = unemploy)) +
 geom_line() +
 ggtitle("Unemployment in USA between 1967 and 2007") +
 xlab("") +
 ylab("Unemployed [thousands]")

第一次尝试

ggplot(data = economics, aes(x = date, y = unemploy)) + geom_line() +
 ggtitle("Unemployment in USA for some years") +
 xlab("") +
 ylab("Unemployed [thousands]") +
 theme(plot.title = element_text(hjust = -0.45, vjust=2.12)))

你的成功!但是等等......还有更多...现在我想将标题更改为其他内容.

ggplot(data = economics, aes(x = date, y = unemploy)) +
 geom_line() +
 ggtitle("Unemployment in USA between 1967 and 2007") +
 xlab("") +
 ylab("Unemployed …

我正在使用theme_minimal()ggplot0.9.3中的优秀发现,它具有白色背景.我想把我的情节标题放在情节右上角的自定义位置.在下面的示例中,我知道x和y值,但我想知道是否有传递方法xmax和ymax值以确保文本放置在右上角.理想情况下,文本是正确的.

#example plot
p <- qplot(mpg, wt, data = mtcars, colour = cyl)
p +  annotate("text", x = 30, y = 5, label = "Custom Title")

#what I would like
p + annotate("text", y= ymax, x =xmax_or_RightJustified)