直接标签中的标签大小geom_dl() [英] Label size in directlabels geom_dl()

问题描述

我真的很喜欢 directlabels 包，用于动态定位图的标签.尽管仍然不够完善，但它可以合理地防止散点图的标签之间有很多点重叠-例如专门用于图表的草稿版本，而不是最终版本的图表.

I have really enjoyed the package directlabels for dynamic positioning the lables of a plot. Although still not perfect, it helps reasonably to prevent overlaps between labels of a scatter plots with many points for example - specially for the draft version of the charts, not the final one.

但是，在使用 geom_dl()函数时，我仍然找不到更改标签大小的方法.反正有吗?

However I can not find anyway to change the label size while using geom_dl() function. Is there anyway?

我试图将 size 和 cex 作为常规参数或 aes()参数传递给该函数.

I have tried to pass size and cex as a normal or aes() argument to the function.

推荐答案

将 cex 放入列表中.其他格式设置功能也应放在列表中.请参阅?directlabels :: geom_dl

Put cex inside a list. Other formatting features should also be placed in the list. See some of the examples in ?directlabels::geom_dl

library(ggplot2)
library(directlabels)

dat = data.frame(x = 1:10, y = 1:10, z = letters[1:10])

ggplot(dat, aes(x, y)) +
    geom_point() +
    geom_dl(aes(label = z), method = list(cex = 2, rot = -45, hjust = -.5))

编辑

该方法也放置在列表中:

The method too is placed in the list:

ggplot(dat, aes(x, y)) +
    geom_point() +
    geom_dl(aes(label = z), method = list("smart.grid", cex = 2))

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