r - 如何在同一个图表上组合一条线和散点图？

Question

当使用 R plotly 包创建时，从 data.frame 创建的两个独立图表可以正常工作。
然而，我不确定如何将它们组合成一个(大概是使用 add_trace 函数)

df <- data.frame(season=c("2000","2000","2001","2001"), game=c(1,2,1,2),value=c(1:4))

plot_ly(df, x = game, y = value, mode = "markers", color = season)
plot_ly(subset(df,season=="2001"), x = game, y = value, mode = "line")

提前致谢

Answer 1

@LukeSingham 给出的答案不再适用于 plotly 4.5.2。您必须从“空”plot_ly() 开始，然后添加轨迹:

df1 <- data.frame(season=c("2000","2000","2001","2001"), game=c(1,2,1,2), value=c(1:4))
df2 <- subset(df, season=="2001")

plot_ly() %>% 
  add_trace(data=df1, x = ~game, y = ~value, type="scatter", mode="markers") %>% 
  add_trace(data=df2, x = ~game, y = ~value, type="scatter", mode = "lines")