R中的堆积面积图

Question

我想为以下数据创建一个堆积面积图：

而且数据继续更进一步。

我正在使用 ggplot 并尝试过：

Dates <- seq.Date(as.Date("2010-03-01"), Sys.Date(), "month")
ggplot(output_2, aes(x = Dates, y = ??, fill = ??)) + geom_area()

我不知道为 y 输入什么并填充。我希望图表与 x1、x2、x3、x4 和 x5 的曲线堆叠在一起。

任何帮助将不胜感激。

谢谢！

Answer 1

这可能会有所帮助。

根据图像的虚拟数据

dummy <- data.frame(
  x1 = c(-0.2510,-0.1889,-0.0440,-0.0134,0.0044,-0.0962),
  x2 = c(-0.1177,-0.1265,-0.1454,-0.2242,-0.2268,-0.1653),
  x3 = c(0.1992,0.2063,0.2026,0.2215,0.2205,0.1980),
  x4 = c(0.2316,0.2297,0.1811,0.0676,0.0656,0.1412),
  x5 = c(0.0621,0.1206,0.1943,0.0515,0.0637,0.0777)
)

dummy$date <- seq.Date(as.Date("2021-04-01"), Sys.Date(), "month")
    dummy %>%
  melt(id.vars = "date") %>% 
  ggplot(aes(x = date, y = value, fill = variable, group = variable)) + 
  geom_area(colour = NA, alpha = 0.5)

数据代码（可能）

output_2$Dates <- seq.Date(as.Date("2010-03-01"), Sys.Date(), "month")
output_2 %>%
  melt(id.vars = "Dates") %>% 
  ggplot(aes(x = Dates, y = value, fill = variable, group = variable)) + 
  geom_area(colour = NA, alpha = 0.5)