我使用 ggpairs 创建了一个散点图,我想更改轴标签以包含一些特殊字符,例如希腊字母。谁能告诉我该怎么做?
这是我的代码:
library(GGally)
data <- data.frame(
"Alm"=seq(1,15,0.1),
"Blm"=rnorm(141,2.3,0.1),
"siglm"=rlnorm(141,0.66,0.01),
"sample"=c(rep("n",50),rep("p",91)
)
ggpairs(n,columns=c("Alm","Blm","siglm"),colour="sample",diag=list(continuous='density'),axisLabels="none",upper=list(combo="facetdensity",continuous="density",params=c(alpha=0.55)),lower=list(continuous="points"))
我希望轴标签看起来像
labels=c(expression(paste(A[LM])),expression(paste(B[LM])),expression(paste(delta[L])))
谢谢你的帮助!