如何根据时钟值对齐geom_text

Question

希望有人能帮我解决这个问题。我尝试了几种解决方案但没有成功。

我想复制下图 #1。因此，我将变量时钟（值从 1 到 12）添加到我的数据框中，以将其用作对齐 geom_text.

的参数

我要复制的图：

我的身材：

按照我的绘图代码：

p1 <- ggplot(data, aes(x=tax, y=employment)) + geom_point(colour = ifelse(style == 1 | style == 2,"black","grey")) + geom_smooth(method=lm, se=FALSE)
p1 + coord_cartesian(xlim = c(0, 0.8), ylim = c(0.5,0.9), expand = FALSE) + labs(x = "1 - participation taxrate", y="Employment rate") + geom_text(aes(family = "Times New Roman", label=ifelse(style == 1 | style == 2 ,Country,''))) + theme_bw()

Answer 1

如果您指定了时钟值，您可以轻松计算出方向，从而计算出您想要在每个方向上微调的量：

angle <- clock/12*2*pi
radius <- 0.01
ng <- data.frame(x = radius * sin(angle), 
                 y = radius * cos(angle))

然后你可以只添加position = position_nudge(x = ng$x, y = ng$y)到geom_text语句。下面我还删除了您要复制的图中未出现的网格线。

p1 + coord_cartesian(xlim = c(0, 0.8), ylim = c(0.5,0.9), expand = FALSE) + 
  labs(x = "1 - participation taxrate", y="Employment rate") + 
  geom_text(aes(family = "Times New Roman", label=ifelse(style == 1 | style == 2 ,Country,'')), 
            position = position_nudge(x = ng$x, y = ng$y)) + 
  theme_bw() +
  theme(panel.grid.major.x = element_blank(), 
        panel.grid.minor.x = element_blank())

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