R: dygraph region shading

dyShading {dygraphs} | R Documentation

## dygraph region shading

### Description

Specify that a region of a dygraph be drawn with a background shading

### Usage

    dyShading(dygraph, from, to, color = "#EFEFEF", axis = "x")

### Arguments

`dygraph` | Dygraph to add shading to
`from` | Date/time or numeric to shade from (for date/time this must be a `as.POSIXct` object or another object convertible via `as.POSIXct`).
`to` | Date/time or numeric to shade to (for date/time this must be a `as.POSIXct` object or another object convertible via `as.POSIXct`).
`color` | Color of shading. This can be of the form "#AABBCC" or "rgb(255,100,200)" or "yellow". Defaults to a very light gray.
`axis` | Axis to apply shading. Choices are "x" or "y".

### Value

A dygraph with the specified shading

### Note

See the online documentation for additional details and examples.

### Examples

    library(dygraphs)

    dygraph(nhtemp, main = "New Haven Temperatures") %>%
      dyShading(from = "1920-1-1", to = "1930-1-1") %>%
      dyShading(from = "1940-1-1", to = "1950-1-1")

    dygraph(nhtemp, main = "New Haven Temperatures") %>%
      dyShading(from = "48", to = "52", axis = "y") %>%
      dyShading(from = "50", to = "50.1", axis = "y", color = "black")

[Package dygraphs version 1.1.1.4 Index]