r - 错误：geom_path：每个组仅包含一个观察值。需要调整群体审美吗？

Question

执行代码时出错

scorecardData  <- data.frame(
   Date = 
c("05/10/2019","06/10/2019","07/10/2019","08/10/2019","09/10/2019"),
   Incoming.Calls= c(10,20,15,5,7)) 


ggplot(data = scorecardData, aes(x = factor(Date), y = Incoming.Calls)) +
  geom_line()

收到错误消息：geom_path：每个组仅包含一个观察值。需要调整群体审美吗？

标签： rggplot2linechart

Answer 1

你需要设置group = 1 看这里

scorecardData  <- data.frame(
    Date = 
        c("05/10/2019","06/10/2019","07/10/2019","08/10/2019","09/10/2019"),
    Incoming.Calls= c(10,20,15,5,7)) 


ggplot(data = scorecardData, aes(x = Date, y = Incoming.Calls, group = 1)) +
    geom_line()