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ggplot2的时间序列和图例

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这是我的数据:

x <- c("22-01-16","26-01-16","28-01-16","01-02-16","05-02-16","16-02-16","17-03-16","18-03-16","04-04-16","05-04-16","06-04-16","08-04-16")
y <- c(97.14,75,54.44,70.45,110.56,66.3,178.76,171.90,419.41,424,518.63,242.17)
z <- c("ADCP","ADCP","ADCP","ADCP","ADCP","ADCP","ADCP","ADCP","ADCP","ADCP","ADCP","ADCP")

所以我制作了数据帧

Datos <- data.frame(x)
Datos$Caudal <- y
Datos$Tipo <- z
Datos$Fecha <- as.Date(Datos$x, "%d-%m-%y")

并使用ggplot2绘图

Serie_Caudal <-
ggplot(Datos, aes(Fecha, Caudal)) +
geom_line(size=1, colour="red") +
geom_point(shape=23,size=1, colour="blue",fill = "blue") +
scale_x_date(date_breaks = "1 week",labels = date_format("%d/%b"))+
xlab("Fecha") + ylab(bquote('Caudal ('*m^3~s^-1*')')) +
ggtitle("Caudales Diarios (01-06/2016)")
Serie_Caudal

我尝试绘制一个传奇,但我不能这样,我尝试使用 Melt 但我的数据以一种我无法绘制的方式改变 . 也请尝试 scale_fill_manual 但传说中没有出现 . 我想知道是否有办法手工制作一个传奇 .

图例必须显示蓝点和ADCP

1 回答

  • 2

    这只显示一个蓝点 .

    ggplot(aes(Fecha, Caudal, colour = "ADCP"), data = Datos) +  
      geom_point() + 
      geom_point(shape=23,size=1,color="blue",fill = "blue") +
      scale_color_manual(values = c("ADCP"="blue"),name = "") +
      geom_line(color="red", size=1) +
      scale_x_date(date_breaks = "1 week",labels = date_format("%d/%b")) +
      xlab("Fecha") + ylab(bquote('Caudal ('*m^3~s^-1*')')) +
      ggtitle("Caudales Diarios (01-06/2016)")
    

    enter image description here

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