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我有以下的小例子:兩種傳說基於不同的數據集與GGPLOT2兩個不同的位置
df1 <- data.frame(x=1:10, y=rnorm(10))
df2 <- data.frame(x=11:20, y=rnorm(10))
df3 <- data.frame(x=1:10, y=rnorm(10,3,1))
df4 <- data.frame(x=11:20, y=rnorm(10,3,1))
ggplot() +
geom_line(data = df1, aes(x = x, y = y, color = "red")) +
geom_line(data = df2, aes(x = x, y = y, color = "red"), linetype="dashed") +
geom_line(data = df3, aes(x = x, y = y, color = "blue")) +
geom_line(data = df4, aes(x = x, y = y, color = "blue"), linetype="dashed") +
theme_bw() +
theme(legend.title=element_blank()) +
theme(legend.text=element_text(size=12)) +
theme(legend.position = c(.9,.89))
我怎麼能有另一個傳奇在圖形的線左上角和虛線與標籤線c("Fitted values", Predicted Values")
?
感謝,
非常感謝。它適用於我,它比其他人在[鏈接]中提到的解決方案容易得多(https://stackoverflow.com/questions/13143894/how-do-i-position-two-legends-independently-in- ggplot)。繼續做好:) – Alirsd