Plot forecast quantiles — plot_quantiles • casteval

Given forecast data, plot the requested quantiles as lines

Usage

plot_quantiles(plt = NULL, fcst, quants = NULL, alpha = 1, colour = "orange")

Arguments

plt: (Optional) A ggplot object. it will be added to using the + operator. Defaults to NULL, in which case a blank ggplot object will be created.
fcst: A forecast object (see output of create_forecast()).
quants: (Optional) A vector of numbers between 0 and 100, the quantiles to be graphed. If not provided, the quantile columns in fcst$data will be used.
alpha: (Optional) The alpha parameter to be passed to ggplot2
colour: (Optional) The colour to be passed to ggplot2

Value

A ggplot object

Examples

fc <- create_forecast(list(
  time=1:10,
  vals=list(
    c(1,2,3,5,4,5,4,6,6,5),
    c(1,3,5,4,6,5,7,9,8,8),
    c(1,4,3,4,5,6,5,3,2,2),
    c(1,2,4,5,7,8,7,9,10,9)
  )
))

NULL |> plot_ensemble(fc) |> plot_quantiles(fc, quants=c(2.5, 50, 97.5))


fc2 <- create_forecast(data.frame(
  time=1:10,
  val_q2.5=1:10,
  val_q25=2:11,
  val_q50=3:12,
  val_q75=4:13,
  val_q97.5=5:14
))

NULL |> plot_quantiles(fc2)

NULL |> plot_quantiles(fc2, quants=c(2.5,50,97.5))