当数据为 POSIXct 时,ggplotly() 不显示 geom_vline / geom_hline

ggplotly() does not display geom_vline / geom_hline when data is POSIXct

我正在尝试用 "time markers" 制作图表。这些时间标记是某些日期的垂直线。时间数据为 POSIXct 格式。我想使用 Plotly 出色的交互界面,并在其中使用我的 ggplot 对象。

问题是这些 "time markers" 在使用 ggplotly() 后没有显示。我已经尝试使用 plotly::add_segments() 但它不起作用。 这里有两个可重现的例子:

1.对于非 POSIXct 数据,它工作正常

# dummy dataset
df2 = data.frame(id = 1:10, measure = runif(10, 0, 20))
events2 = data.frame(number = c(2,3,8))
# ggplot graph
p2 = ggplot() + geom_line(data = df2, aes(x = id, y = measure))  +
  geom_vline(data = events2, aes(xintercept = events2$number), color = "red")
p2
# plotly graph that displays the geom_vline properly
ggplotly(p2)

2。使用 POSIXct 数据不会显示正确的结果

# dummy dataset
df = data.frame(date = seq(as.POSIXct("2017-07-01", tz = "UTC", format = "%Y-%m-%d"),
                           as.POSIXct("2018-04-15", tz = "UTC", format = "%Y-%m-%d"),
                           "1 month"),
                measure = runif(10, 0, 20))
events = data.frame(date_envents = as.POSIXct(c("2017-10-12", "2017-11-12", "2018-03-15"), tz = "UTC", format = "%Y-%m-%d"))
# ggplot graph
p = ggplot() + geom_line(data = df, aes(x = date, y = measure))  +
  geom_vline(data = events, aes(xintercept = events$date), color = "red")
p
# plotly graph that does not display the geom_vline properly
ggplotly(p)

我看到了一些解决方法(比如这个:),但它是 "complicated"。有没有更简单的方法来解决这个问题?

我正在使用 Windows 10 和 R 版本 3.5.0、RStudio 和以下软件包: library(tidyverse)library(plotly)

一个简单的解决方法是将 geom_vlinexintecept 设置为数字。

示例数据

df = data.frame(date = seq(as.POSIXct("2017-07-01", tz = "UTC", format = "%Y-%m-%d"),
                           as.POSIXct("2018-04-15", tz = "UTC", format = "%Y-%m-%d"),
                           "1 month"),
                measure = runif(10, 0, 20))
events = data.frame(date_envents = as.POSIXct(c("2017-10-12", "2017-11-12", "2018-03-15"), tz = "UTC", format = "%Y-%m-%d"))

代码

p = ggplot() + geom_line(data = df, aes(x = date, y = measure))  +
  geom_vline(data = events, aes(xintercept = as.numeric(events$date)), color = "red")

结果

ggplotly(p)