用ggtern中的geom_point和黑色轮廓填充

如何解决用ggtern中的geom_point和黑色轮廓填充

如何用选定的填充红色/蓝色和黑色轮廓为A和D着色。检查我的以查看我尝试过的内容。谢谢！

obs <- c("Gene1","Gene2","Gene3","Gene4","Gene5","Gene6")
    func1 <- c("A","B","C","D","A")
    func2 <- c("A1","B1","C1","D1","C2","A2")
    Cond1 <- c(0.007623561,0.004639893,0.000994121,0.017494429,0.000366445,0.006663334)
    Cond2 <- c(0.011299941,0.009994388,0.001012428,0.013695669,0.000299771,0.010287904)
    Cond3 <- c(0.005055458,0.016826251,0.001311254,0.016115009,0.000242897,0.004583889)
    df <- data.frame(obs,func1,func2,Cond1,Cond2,Cond3)

library(ggtern)

g = ggtern(data=df,aes(x=Cond1,y=Cond2,z=Cond3)) +
theme_bw() +
geom_point(aes(fill = c("A" = "red","D" = "blue"),shape=21,colour="black" ) +
labs(x="Cond1",y="Cond2",z="Cond3") +
scale_T_continuous(breaks=unique(df$x))+ 
scale_L_continuous(breaks=unique(df$y))+ 
scale_R_continuous(breaks=unique(df$z))

所需的输出：

解决方法

您需要创建一个命名的颜色列表，然后使用scale_fill_manual函数。

#A General way of creating a name list of colors
# col<-c("A" = "red","B"="black","C"="black","D"="blue")
col<-rep("black",length(unique(df$func1)))
names(col) <- unique(df$func1)
col[which(names(col)=="A")] <- 'red'
col[which(names(col)=="D")] <- 'blue'

library(ggtern)

g <- ggtern(data=df,aes(x=Cond1,y=Cond2,z=Cond3)) +
   theme_bw() +
   geom_point(aes(fill=func1),shape=21,colour="black" ) +
   scale_fill_manual(values=col) +
   labs(x="Cond1",y="Cond2",z="Cond3") +
   scale_T_continuous(breaks=unique(df$x))+ 
   scale_L_continuous(breaks=unique(df$y))+ 
   scale_R_continuous(breaks=unique(df$z))

print(g)    

更新
ggplot按定义的顺序绘制不同的图层。为了在其他点上绘制A和D点，可以在原始点之后添加另一个geom_point定义。

在这里，我创建了A＆D点的子集，并将它们绘制在初始集合上。

df_ad <- df[(df$func1=="A" | df$func1=="D"),]

ggtern(data=df,colour="black" ) +
   geom_point(data=df_ad,z=Cond3,fill=func1),shape=21) +
   scale_fill_manual(values=col) #+ ....