对应两期数据的geom_line

Question

有数据记录了两个时期的变化。数据按id对应，分组。也就是说，数据显示了从2000年到2007年id1组A的变化，.

type <- c("a","a","b","b","b","b","c","c","c","c","c","c")
year <- c(2000,2007,2000,2000,2007,2007,2000,2000,2000,2007,2007,2007)
rate <- c(0.1,0.4,0.2,0.1,0.4,0.3,0.3,0.3,0.4,0.6,0.8,0.4)
id <- c(1,1,2,3,2,3,4,5,6,4,5,6)
d<-cbind(type,year,rate,id)

我想为每个id画一条线，两个句点，但效果不佳。

ggplot(data=d, mapping=aes(x=year, y=rate), color = type, group = id) +
  geom_line(aes(year, rate), linetype = "solid", size = 2, alpha = .4)

Answer 1

我不太了解你的数据的上下文，但根据你的描述，你需要简单地将 id 和 type 放入美学中。

d<-data.frame(type,year,rate,id)

ggplot(data=d, mapping=aes(x=year, y=rate, color = type, group = id)) +
  geom_line(linetype = "solid", size = 2, alpha = .4)

对应两期数据的geom_line

The geom_line of the corresponding two periods of data

r

ggplot2

corresponding-records