dygraph event line — dyEvent • dygraphs

Add a vertical event line to a dygraph

dyEvent(dygraph, x, label = NULL, labelLoc = c("top", "bottom"),
  color = "black", strokePattern = "dashed", date)

Arguments

dygraph: Dygraph to add event line to
x: Either numeric or date/time for the event, depending on the format of the x-axis of the dygraph. (For date/time must be a POSIXct object or another object convertible to POSIXct via as.POSIXct)
label: Label for event. Defaults to blank.
labelLoc: Location for label (top or bottom)
color: Color of event line. This can be of the form "#AABBCC" or "rgb(255,100,200)" or "yellow". Defaults to black.
strokePattern: A predefined stroke pattern type ("dotted", "dashed", "dotdash", or "solid") or a custom pattern array where the even index is a draw and odd is a space in pixels. Defaults to dashed.
date: (deprecated) See argument x.

Value

A dygraph with the specified event line.

Note

See the online documentation for additional details and examples.

Examples

library(dygraphs)

dygraph(presidents, main = "Presidential Approval") %>%
  dyAxis("y", valueRange = c(0, 100)) %>%
  dyEvent("1950-6-30", "Korea", labelLoc = "bottom") %>%
  dyEvent("1965-2-09", "Vietnam", labelLoc = "bottom")

dygraph(presidents, main = "Presidential Approval") %>%
  dyAxis("y", valueRange = c(0, 100)) %>%
  dyEvent(c("1950-6-30", "1965-2-09"), c("Korea", "Vietnam"), labelLoc = "bottom")