使用带有计数和百分比的Plotly在R中打开饼图/甜甜圈图

Question

我正在尝试使用plotly在R中制作一个甜甜圈图。 我尝试了ggplot，但无法满足我的需要。 这是一个示例数据集：

library(dplyr)
testfile <- tibble(personID = 1:10,
                   status = c("bad", "good", "bad", "bad", "bad", "bad", "bad", "bad", "bad", "good"),
                   department = c("sales", "sales", "marketing", "sales", "marketing", "management", "management", "sales", "sales", "sales"))

该图表最终将在PowerPoint中显示，因此不需要响应。 取而代之的是，我需要饼状图说出不属于每种状态和计数的百分比，而不是对其进行滚动。 另外，在饼图的中心，我想说“好”类别中的百分比。

这是我到目前为止的代码。 它具有可见的百分比，但不滚动，但没有计数，并且中心没有百分比。

library(plotly)
p <- testfile %>%
  group_by(status) %>%
  summarize(count = n()) %>%
  plot_ly(labels = ~status, values = ~count) %>%
  add_pie(hole = 0.6) %>%
  layout(title = "Ratio of Good to Bad",  showlegend = F,
         xaxis = list(showgrid = FALSE, zeroline = FALSE, showticklabels = TRUE),
         yaxis = list(showgrid = FALSE, zeroline = FALSE, showticklabels = TRUE))

另外，如果您可以显示如何按部门进行facet_wrap处理，那将非常有帮助。 我一直说它为NULL！

谢谢！

Answer 1

如果您想在饼图/甜甜圈图的中央添加文本，可以添加注释 。

values <- testfile %>%
  group_by(status) %>%
  summarize(count = n())

good <- values %>% filter(status == 'good')

p <- layout(p, annotations=list(text=paste(good$count / sum(values$count) * 100, "%", sep=""), "showarrow"=F))

为了更改在饼图的每个部分中显示的标签，可以使用text 。

p <- plot_ly(values, labels = ~status, values = ~count, text = ~count)

完整的代码

library(dplyr)
library(plotly)

testfile <- tibble(personID = 1:10,
                   status = c("bad", "good", "bad", "bad", "bad", "bad", "bad", "bad", "bad", "good"),
                   department = c("sales", "sales", "marketing", "sales", "marketing", "management", "management", "sales", "sales", "sales"))

values <- testfile %>%
  group_by(status) %>%
  summarize(count = n())

good <- values %>% filter(status == 'good')

p <- plot_ly(values, labels = ~status, values = ~count, text = ~count) %>%
  add_pie(hole = 0.6) %>%
  layout(title = "Ratio of Good to Bad",  showlegend = F, 
         xaxis = list(showgrid = FALSE, zeroline = FALSE, showticklabels = TRUE),
         yaxis = list(showgrid = FALSE, zeroline = FALSE, showticklabels = TRUE))

p <- layout(p, annotations=list(text=paste(good$count / sum(values$count) * 100, "%", sep=""), "showarrow"=F))
p