我有一个图(用ggplot2
在R中制成)是一堆文本数据的奇异值分解的结果,所以我基本上有一个约100个单词的数据集,用于某些评论和〜 10个类别的评论,每个评论都有2D坐标。由于文本的数量以及许多要点的紧密程度,我无法使情节看起来清晰易懂。
现在数据的结构方式是,我绘制2个不同的geom_texts
,它们具有不同的格式和其他格式,并分别传递一个单独的坐标数据框。这很容易,因为如果〜10个类别与〜100个术语重叠(这是次要的),并且我希望两者的格式完全不同,那很好,但是并不一定有理由不能将它们放在一起数据框和geom
我猜是否有人可以找到解决方案。
我想做的是使用ggrepel
功能,使〜10个类别相互排斥,并使用shadowtext
功能使它们在彩色单词的背景中脱颖而出,但是由于它们是不同的geom
,因此我不确定如何实现。
带有伪造数据的最小示例:
library(ggplo2)
library(ggrepel)
library(shadowtext)
dictionary <- c("spicy", "Thanksgiving", "carborator", "mixed", "cocktail", "stubborn",
"apple", "rancid", "table", "antiseptic", "sewing", "coffee", "tragic",
"nonsense", "stufing", "words", "bottle", "distillery", "green")
tibble(Dim1 = rnorm(100),
Dim2 = rnorm(100),
Term = sample(dictionary, 100, replace = TRUE),
Color = as.factor(sample.int(10, 100, replace = TRUE))) -> words
tibble(Dim1 = c(-1,-1,0,-0.5,0.25,0.25,0.3),
Dim2 = c(-1,-0.9, 0, 0, 0.25, 0.4, 0.1),
Term = c("Scotland", "Ireland", "America", "Taiwan", "Japan", "China", "New Zealand")) -> locations
#Base graph
ggplot() +
xlab("Factor 1") +
ylab("Factor 2") +
theme(legend.position = "none") +
geom_text_repel(aes(x = Dim1, y = Dim2, label = Term, color = Color),
words,
fontface = "italic", size = 8) -> p
#Cluttered and impossible to read:
p + geom_text(aes(x = Dim1, y = Dim2, label = Term),
locations,
fontface = "bold", size = 16, color = "#747474")
#I can make it repel:
p + geom_text_repel(aes(x = Dim1, y = Dim2, label = Term),
locations,
fontface = "bold", size = 16, color = "#747474")
#Or I can make the shadowtext:
p + geom_shadowtext(aes(x = Dim1, y = Dim2, label = Term),
locations,
fontface = "bold", size = 16, color = "#747474", bg.color = "white")
第二个情节的结果令人反感:
最后一个绘图的结果,类别标签周围有这些看起来干净的白色缓冲区:
有两种方法都可以吗?我尝试使用geom_label_repel
,但没有边框,但我认为它看起来不像阴影文本解决方案那么干净。