Add_Trace Plotly 中的问题

Question

如何在 add_trace 函数中增加绿线 (lcl) 和红线 (lsl) 的长度，使它们延伸到绘图的末尾（而不是中途停止）？

这是我的图形代码：

      output$p <- renderPlotly({
plot1 %>%

                add_trace(y = lcl(),type = "scatter", mode = "lines", line = list(color = 'lightgreen', width = 2, dash = 'solid'), inherit = FALSE, name = paste("LCL =", lcl()[1])) %>%
     
                add_trace(y = lsl(),type = "scatter", mode = "lines", line = list(color = 'red', width = 2, dash = 'solid'), inherit = FALSE, name = paste("LSL =", lsl()[1])) %>%
              %>%
                layout(
                    title = paste(" cell culture", input$select),
                    yaxis = list(  showline = TRUE,
                                   mirror = "ticks",
                                   linecolor = toRGB("grey"),
                                   linewidth = 1.85
                    ),
                    xaxis = list(  showline = TRUE,
                                   mirror = "ticks",
                                   linecolor = toRGB("grey"),
                                   linewidth = 1.85,
                                   tickangle=70))
        })

编辑：为简单起见，我删除了实际图（散点图）的代码，该图很好，不需要任何调整。

Answer 1

我不会使用 add_trace 创建横跨整个图形的水平线，而是将水平线作为形状添加到布局中：

layout(shapes = list(
  list(
    type = "line",
    x0 = 0,
    x1 = 1,
    xref = "paper",
    y0 = 75,
    y1 = 75,
    line = list(color = 'lightgreen', width = 2)
  ),
  list(
    type = "line",
    x0 = 0,
    x1 = 1,
    xref = "paper",
    y0 = 100,
    y1 = 100,
    line = list(color = 'red', width = 2)
  )
))

xref = "paper" 用于使线条跨越整个图形。

Positioning in paper coordinates is not done in absolute pixel terms, but rather in terms relative to a coordinate system defined with an origin (0,0) at (layout.margin.l, layout.margin.b) and a point (1,1) at (layout.width-layout.margin.r, layout.height-layout.margin.t)...

https://plotly.com/python/figure-structure/#positioning-with-paper-container-coordinates-or-axis-domain-coordinates

根据您的要求更改 y 值。

Add_Trace Plotly 中的问题

Add_Trace issue in Plotly

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plotly

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