我的情节有问题。我想只显示A组中的点数,而不是每个名称。这是一个例子:
name <- c("a","b","c","d")
df <- data.frame(id = rep(1:5,3),
value = c(seq(50,58,2),seq(60,68,2),seq(70,78,2)),
name = c(rep("A",5),rep("B",5),rep("C",5)),
type = rep(c("a","b","c","d","r"),3))
df$name <- factor(df$name, levels = c("C","B","A"),ordered = TRUE)
ggplot(df, aes(id, value, fill = name,color = type))+
geom_area( position = 'identity', linetype = 1, size = 1 ,colour="black") +
geom_point(size = 8)+
guides(fill = guide_legend(override.aes = list(colour = NULL, shape = NA)))
答案 0 :(得分:3)
如果我正确地阅读了这个问题,那么您似乎只想要蓝色区域的点。在这种情况下,您可以对数据进行子集化并将其用于geom_point
。
ggplot(df, aes(id, value, fill = name,color = type))+
geom_area( position = 'identity', linetype = 1, size = 1 ,colour="black") +
geom_point(data = subset(df, name == "A"), size = 8) +
guides(fill = guide_legend(override.aes = list(colour = NULL, shape = NA)))