ggplot2分类x轴的不同构面宽度 [英] ggplot2 different facet width for categorical x-axis

问题描述

我正在绘制分类数据的不同方面:

I have am plotting different facets of categorical data:

df <- as.data.frame(as.factor(c("A","B","C","D","E","F")))
names(df) <- "Xvar"
df$Yvar <- c(2,1,4,5,3,7)
df$facet <- c(rep("facet 1",2),rep("facet 2",4))

ggplot(df, aes(x=Xvar, y=Yvar, group=1)) +
  geom_line() +
  facet_wrap(~facet, scales="free_x")

如何使仅包含两个类别的构面1成为包含四个类别的构面2大小的一半? IE.每个小平面的宽度与x轴分类数据点的数量成正比吗?我尝试scales="free_x"无济于事.

How can I make it such that facet 1 consisting of only two categories is half the size of facet 2 containing four categories? I.e. that the width of each facet is proportional to the number of categorical x-axis data points? I tried scales="free_x" to no avail.

推荐答案

如果您愿意使用facet_grid而不是facet_wrap，则可以使用space参数来实现.

If you're willing to use facet_grid instead of facet_wrap, you can do this with the space parameter.

ggplot(df, aes(x=Xvar, y=Yvar, group=1)) +
  geom_line() +
  facet_grid(~facet, scales="free_x", space = "free_x")

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