R plotly 帶子圖的餅圖

Question

我正在嘗試制作一個R plotly pie chart subplot ，其中包含兩個餅圖，每個餅圖都有一個標題。 我遵循了本教程Subplots下的示例，只繪制了三個餅圖中的兩個並為每個餅圖添加了一個標題：

library(plotly)
library(dplyr)

fig <- plot_ly()
fig <- fig %>% add_pie(data = count(diamonds, cut), labels = ~cut, values = ~n, textinfo='label+percent', showlegend=F,
                       name = "Cut", domain = list(x = c(0, 0.4), y = c(0.4, 1))) %>%
  layout(title="Cut")
fig <- fig %>% add_pie(data = count(diamonds, color), labels = ~color, values = ~n, textinfo='label+percent', showlegend=F,
                       name = "Color", domain = list(x = c(0.6, 1), y = c(0.4, 1))) %>%
  layout(title="Color")

這使：

它看起來類似於使用plotly subplot function 時出現多個標題的問題（在此處討論），但在這種情況下未明確調用子圖，因此我不確定此處的等效解決方案是什么。

Answer 1

title參數需要在trace調用中：

fig <- plot_ly()
fig <- fig %>% add_pie(data = count(diamonds, cut), labels = ~cut, values = ~n, textinfo='label+percent', showlegend=F, title="Cut",
                       name = "Cut", domain = list(x = c(0, 0.4), y = c(0.4, 1)))
fig <- fig %>% add_pie(data = count(diamonds, color), labels = ~color, values = ~n, textinfo='label+percent', showlegend=F, title="Color",
                       name = "Color", domain = list(x = c(0.6, 1), y = c(0.4, 1)))