作者:妩媚芙蓉糕 | 来源:互联网 | 2022-12-02 16:41
我正在尝试制作带有“时间标记”的图形。这些时间标记是某些日期的垂直线。时间数据是POSIXct格式。我想使用Plotly的出色交互界面,并在其中使用ggplot对象。
问题是在使用ggplotly()之后,这些“时间标记”没有显示出来。我已经尝试过了,plotly::add_segments()
但是没有用。这是两个可复制的示例:
1.使用非POSIXct数据可以正常工作
# 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$number), color = "red")
p2
# plotly graph that displays the geom_vline properly
ggplotly(p2)
2.使用POSIXct时,数据无法显示正确的结果
# dummy dataset
df = data.frame(date = seq(as.POSIXct("2017-07-01", tz = "UTC", format = "%Y-%m-%d"),
as.POSIXct("2018-04-15", tz = "UTC", format = "%Y-%m-%d"),
"1 month"),
measure = runif(10, 0, 20))
events = data.frame(date_envents = as.POSIXct(c("2017-10-12", "2017-11-12", "2018-03-15"), tz = "UTC", format = "%Y-%m-%d"))
# ggplot graph
p = ggplot() + geom_line(data = df, aes(x = date, y = measure)) +
geom_vline(data = events, aes(xintercept = events$date), color = "red")
p
# plotly graph that does not display the geom_vline properly
ggplotly(p)
我已经看到了一些解决方法(例如这样的方法:将垂直线添加到ggplotly plot),但是它很“复杂”。有没有更简单的方法来解决此问题?
我正在将Windows 10与R版本3.5.0,RStudio和以下软件包结合使用:
library(tidyverse)
和library(plotly)
1> Wimpel..:
一个简单的解决方法是设置xintecept
的geom_vline
对数值。
样本数据
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"))
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)