我试图制作类似于这个答案的情节:https://stackoverflow.com/a/4877936/651779
我的数据框如下所示:
df2 <- read.table(text='measurements samples value
1 4hours sham1 6
2 1day sham1 175
3 3days sham1 417
4 7days sham1 163
5 14days sham1 37
6 90days sham1 134
7 4hours sham2 8
8 1day sham2 402
9 3days sham2 482
10 7days sham2 67
11 14days sham2 16
12 90days sham2 31
13 4hours sham3 185
14 1day sham3 402
15 3days sham3 482
16 7days sham3 85
17 14days sham3 29
18 90days sham3 10',header=T)
用
绘制ggplot(df2, aes(measurements, value)) + geom_line(aes(colour = samples))
情节中没有显示任何行,我收到消息
geom_path: Each group consist of only one observation.
Do you need to adjust the group aesthetic?
我不知道我在做什么与我上面提到的答案有所不同。我应该改变什么来使这项工作?
答案 0 :(得分:27)
将group = samples
添加到aes
的{{1}}。这是必要的,因为您需要每行geom_line
一行而不是每个数据点。
samples