R: Plots the median and an interval between two specified...

plot_ribbon {bsvars}

R Documentation

Plots the median and an interval between two specified percentiles for a sequence of `K` random variables

Description

Plots the median and an interval between two specified percentiles for a sequence of K random variables based on the S posterior draws provided for each of them.

Usage

plot_ribbon(
  draws,
  probability = 0.9,
  col = "#ff69b4",
  ylim,
  ylab,
  xlab,
  start_at = 0,
  add = FALSE,
  ...
)

Arguments

`draws`	a `K x S` matrix with `S` posterior draws of `K` random variables, or a `K x S x N` array with `N` such matrices
`probability`	a number from interval `(0,1)` denoting the probability content of the plotted interval. The interval stretches from the `0.5 * (1 - probability)` to `1 - 0.5 * (1 - probability)` percentile of the posterior distribution.
`col`	a colour of the plot
`ylim`	the range of the `y` axis
`ylab`	the label of the `y` axis
`xlab`	the label of the `x` axis
`start_at`	an integer to denote the beginning of the `x` axis range
`add`	a logical value. If `TRUE` the current ribbon plot is added to an existing plot
`...`	other graphical parameters to be passed to `base::plot`

Author(s)

Tomasz Woźniak wozniak.tom@pm.me

Examples

data(us_fiscal_lsuw)                                               # upload data
set.seed(123)                                                      # set seed
specification  = specify_bsvar$new(us_fiscal_lsuw)                 # specify model

burn_in        = estimate(specification, 10)                       # run the burn-in
posterior      = estimate(burn_in, 20, thin = 1)                   # estimate the model
irf            = compute_impulse_responses(posterior, horizon = 4) # impulse responses
plot_ribbon(irf[1,1,,])