R: dygraph event line

dyEvent {dygraphs} | R Documentation

## dygraph event line

### Description

Add a vertical event line to a dygraph

### Usage

    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")

[Package dygraphs version 1.1.1.4 Index]