有沒有辦法不顯示 R plotly 中的 add_trace 值的 hover 值？

Question

我想知道是否有辦法不在 plotly 圖 output 上顯示 add_trace 值？ 下面的代碼生成一系列累積的年度折線圖。 插入了 add_trace 添加以在圖中添加一條垂直虛線。 但是，當我在圖形上顯示 hover 時，它顯示了垂直線的值 - 可以關閉它，但允許累積年度線的 hover 值嗎？ 我希望通過調整下面的代碼來做到這一點。

謝謝。

df %>% 
  filter(op_area_ocode == 'ALL') %>% mutate(Year = as.character(R.Year), DoY = as.Date(DoY.N, origin = "1972-01-01") - 1) %>% 
  plot_ly(., x = ~ DoY, y = ~cni, color = ~Year, colors = c("#D3D3D3","#D3D3D3","#D3D3D3","#D3D3D3","black","#E69F00","#56B4E9", "#009E73", "#AA4499"), type = 'scatter', mode = 'lines') %>%
  layout(title = paste("Reports"), xaxis = list(title = "", type = "date", tickformat = "%d %b"), yaxis = list (title = "Number of reports")) %>% 
  add_trace(x = as.Date("1972-08-15"),type = 'scatter', mode = 'lines', line = list(color = 'red', width=0.5, dash ="dot"),name = '', showlegend = FALSE) 

Answer 1

您應該可以在add_trace()調用中使用hoverinfo='none'

df %>% 
  filter(op_area_ocode == 'ALL') %>% mutate(Year = as.character(R.Year), DoY = as.Date(DoY.N, origin = "1972-01-01") - 1) %>% 
  plot_ly(., x = ~ DoY, y = ~cni, color = ~Year, colors = c("#D3D3D3","#D3D3D3","#D3D3D3","#D3D3D3","black","#E69F00","#56B4E9", "#009E73", "#AA4499"), type = 'scatter', mode = 'lines') %>%
  layout(title = paste("Reports"), xaxis = list(title = "", type = "date", tickformat = "%d %b"), yaxis = list (title = "Number of reports")) %>% 
  add_trace(x = as.Date("1972-08-15"),
            type = 'scatter',
            mode = 'lines',
            line = list(color = 'red', width=0.5, dash ="dot"),
            name = '',
            showlegend = FALSE,
            hoverinfo="none"
  )