刪除R中highchart區域圖中的空白

Question

我正在嘗試刪除面積圖（在 R 中使用 highchart 創建）左側和右側的空白區域，如下圖紅色所示。

我的可重現代碼：

library(highcharter)

type <- c("A", "B", "C", "D","A", "B", "C", "D","A", "B", "C", "D")
total <- c(3300, 6080, 2780, 14054, 3638, 6360, 2722, 14148, 2681, 4761, 2080, 10080)
year <- c(2018, 2018, 2018, 2018, 2019, 2019, 2019, 2019, 2020, 2020, 2020, 2020)
df <- data.frame(type, year, total)

highchart() %>%

  hc_chart(type="area") %>%
  hc_add_series(data = subset(df, type == "D"), name = "D", type = "area", hcaes(x = year, y = total)) %>%
  hc_add_series(data = subset(df, type == "B"), name = "B", type = "area", hcaes(x = year, y = total)) %>%
  hc_add_series(data = subset(df, type == "C"), name = "C", type = "area", hcaes(x = year, y = total)) %>%
  hc_add_series(data = subset(df, type == "A"), name = "A", type = "area", hcaes(x = year, y = total)) %>%

  hc_xAxis(title = "", categories = c("2018", "2019", "2020"))

我在網上瀏覽過，但我不懂 JavaScript，所以很難弄清楚。

Answer 1

我將 hc_xAxis 更改為使用 tickPositions 而不是類別。

hc_xAxis(title = "", 
           min = 2018, max = 2020, 
           tickPositions = c(2018, 2019, 2020))