使用子图组合静态和动画绘图对象

Question

给出以下 data.frame

data <- structure(list(
  a = c(3.022210021321, 3.31806778755904, 3.34379454984061, 3.47242836124846, 3.55604033866356, 1.11199792191451, 1.24063173332236, 1.31781202016707, 1.30494863902628, 1.3692655447302, 1.07983946906255, 1.2084732804704, 1.40142399758216, 1.60723809583472, 1.64582823925707), 
  b = c(2.64027979608152, 2.79483009168741, 2.90522315997732, 3.08185206924119, 2.86106593266136, 0.653204566863006, 0.697361794178973, 0.67528318052099, 0.653204566863006, 0.697361794178973, 2.06623584097395, 2.28702197755379, 2.48572950047564, 2.72859425071346, 2.77275147802942), 
  c = c(2L, 2L, 2L, 2L, 2L, 3L, 3L, 3L, 3L, 3L, 1L, 1L, 1L, 1L, 1L), 
  d = c(1.16264425026133, 1.16264425026133, 1.16264425026133, 1.16264425026133, 1.16264425026133, 1.48373054411498, 1.48373054411498, 1.48373054411498, 1.48373054411498, 1.48373054411498, 3.35362520562369, 3.35362520562369, 3.35362520562369, 3.35362520562369, 3.35362520562369), 
  e = c(2015L, 2016L, 2017L, 2018L, 2019L, 2015L, 2016L, 2017L, 2018L, 2019L, 2015L, 2016L, 2017L, 2018L, 2019L), 
  f = c("X", "X", "X", "X", "X", "Y", "Y", "Y", "Y", "Y", "Z", "Z", "Z", "Z", "Z"), 
  h = structure(c(2L, 2L, 2L, 2L, 2L, 3L, 3L, 3L, 3L, 3L, 1L, 1L, 1L, 1L, 1L), .Label = c("low", "mid", "high"), class = c("ordered", "factor"))), 
  row.names = c(NA, -15L), 
  class = "data.frame")

和以下代码片段

library(plotly)    
p <- data %>% plot_ly(
  x = ~a, 
  y = ~b, 
  size = ~c, 
  sizes = c(100, 850),
  color = ~d, 
  colors = "YlOrRd",
  alpha = 0.365,
  frame = ~e, 
  text = ~paste0("Info: ", f),
  hoverinfo = "text",
  type = 'scatter',
  mode = 'markers') %>% 
  add_text(textfont = list(size = 10, color = "black"), textposition = "top", text=~f, showlegend = F)

legend.plot <- plot_ly() %>% 
  add_markers(x = 1, 
              y = seq_len(length(unique(data$c))),
              size = sort(unique(data$c)),
              showlegend = F, 
              color = I("black"),
              marker = list(sizeref=0.1, sizemode="area")) %>%
  layout(
    annotations = list(
      list(x = 1.2, 
           y = 0.4, 
           text = "Size by: c", 
           showarrow = F, 
           xref='paper', 
           yref='paper')),
    xaxis = list(
      zeroline=F,
      showline=F,
      showticklabels=F,
      showgrid=F),
    yaxis=list(
      side = "right",
      range = c(0,10),
      showgrid=F,
      zeroline=F,
      tickmode = "array",
      tickvals = seq_len(length(unique(data$c))),
      ticktext = c("low","mid","high")))

subplot(p, legend.plot, widths = c(0.85, 0.15), titleX=TRUE, titleY=TRUE) %>%
  config(displayModeBar = F) %>%
  colorbar(title = "Color by: d", x = 0.9, y = 1)

我几乎得到了我想要的情节（暂时忽略沿途的警告）。

但是，我无法弄清楚如何在动画期间保留尺寸图例。它出现在初始阶段，在按下播放按钮之前，但我一按播放，它就消失了。

因此当我运行动画时，静态绘图数据点从子图中消失。有什么提示吗？

Answer 1

这行得通。你的 pseudo-legend 消失的原因是你只在第一帧有它。我在这里所做的是添加所有 5 年的数据（这就是为什么我有 rep）并确保 frame 包含在两个图中。

legend.plot <- plot_ly() %>% 
  add_markers(x = rep(1,15), 
              y = rep(seq_len(length(unique(data$c))),5),
              size = rep(sort(unique(data$c)),5),
              showlegend = F, 
              color = I("black"),
              frame = ~data$e,
              marker = list(sizeref=0.1, sizemode="area")) %>%
  layout(
    annotations = list(
      list(x = 1.2, 
           y = 0.4, 
           text = "Size by: c", 
           showarrow = F, 
           xref='paper', 
           yref='paper')),
    xaxis = list(
      zeroline=F,
      showline=F,
      showticklabels=F,
      showgrid=F),
    yaxis=list(
      side = "right",
      range = c(0,10),
      showgrid=F,
      zeroline=F,
      tickmode = "array",
      tickvals = seq_len(length(unique(data$c))),
      ticktext = c("low","mid","high")))

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