ggplot2轴:如何将scale_x_reverse与scale_x_continous组合 [英] ggplot2 axis: how to combine scale_x_reverse with scale_x_continous

问题描述

对于我的图表

 ggplot(data=data, x=x, y=y, fill=factor(c)+ geom_path()+geom_errorbar()+   geom_point() 

我想使用

scale_y_reverse()

在定义其限制，中断，标记和扩展时.

while define its limits, breaks, labels and expands.

我通常使用:

scale_y_continuous(limits=c(x,y), breaks=c(x,y,z), labels=c(x,y,z), expand(x,y))

好吧，显然

scale_y_reverse()

和scale_y_continous()被认为是相同的代码！当我收到一个错误消息时，说:

and scale_y_continous() are somehow considered as the same code!? As I get an Error, saying:

"y的比例已存在.为y添加另一个比例，它将替换现有规模."

"Scale for 'y' is already present. Adding another scale for 'y', which will replace the existing scale."

我发现一则帖子说可以合并这两个命令，因此我尝试了:

I found a post saying that it is possible to combine the two commands, thus I tried:

scale_y_reverse(limits=c(x,y), breaks=c(x,y,z), labels=c(x,y,z), expand(x,y))

也不起作用.

我确信必须有一种方法，并且像往常一样，我想这很简单..一旦您知道.

I am sure that there has to be a way, and as usual I suppose it is very simple.. once you know.

我希望有人知道如何解决这个问题.

I hope someone know how to solve this.

亲切的问候

推荐答案

图形的每个美学属性(y轴，x轴，颜色等)仅接受一个比例.如果您指定2个比例，例如 scale_y_continuous()后跟 scale_y_reverse()，第一个比例尺将被覆盖.

Each aesthetic property of the graph (y-axis, x-axis, color, etc.) only accepts a single scale. If you specify 2 scales, e.g. scale_y_continuous() followed by scale_y_reverse(), the first scale is overridden.

您可以在 scale_y_reverse()中指定限制，中断和标签，而只需省略 scale_y_continuous().

You can specify limits, breaks, and labels in scale_y_reverse() and just omit scale_y_continuous().

示例:

d <- data.frame(a = 1:10, b = 10:1)

ggplot(d, aes(x = a, y = b)) +
  geom_point() +
  scale_y_reverse(
    limits = c(15, 0), 
    breaks = seq(15, 0, by = -3),
    labels = c("hi", "there", "nice", "to", "meet", "you")
    )

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