在R散點圖中更改標記顏色

Question

以下代碼生成帶有紅色標記的圖：

trace_0 <- rnorm(100, mean = 5)
trace_1 <- rnorm(100, mean = 0)
x <- c(1:100)

data <- data.frame(x, trace_0, trace_1)

plot_ly(data, x = ~x, y = ~trace_0, type = 'scatter', mode = 'markers',
        marker = list(color='red'))

如果我嘗試添加一行，我還會得到不需要的紅色標記：

plot_ly(data, x = ~x, y = ~trace_0, type = 'scatter', mode = 'markers',
        marker = list(color='red'))%>%
  add_trace(y = ~trace_1, mode = 'lines')

以及plot_ly的投訴：

A marker object has been specified, but markers is not in the mode
Adding markers to the mode...

有人可以解釋一下我在哪里出問題了嗎？ 謝謝。

Answer 1

這將給您您想要的：

plot_ly(data, x = ~x) %>%
add_trace(y = ~trace_0, mode = 'markers', marker = list(color='red')) %>%
  add_trace(y = ~trace_1, mode = 'lines')