dygraph region shading — dyShading • dygraphs

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

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")