bsvars (version 3.1)

summary.SDDRvolatility: Provides summary of verifying homoskedasticity

Description

Provides summary of the Savage-Dickey density ratios for verification of structural shocks homoskedasticity.

Usage

# S3 method for SDDRvolatility
summary(object, ...)

Value

A table reporting the logarithm of Bayes factors of homoskedastic to heteroskedastic posterior odds "log(SDDR)" for each structural shock, their numerical standard errors "NSE", and the implied posterior probability of the homoskedasticity and heteroskedasticity hypothesis, "Pr[homoskedasticity|data]" and "Pr[heteroskedasticity|data]"

respectively.

Arguments

object

an object of class SDDRvolatility obtained using the verify_volatility() function.

...

additional arguments affecting the summary produced.

Author

Tomasz Woźniak

See Also

verify_volatility

Examples

# upload data
data(us_fiscal_lsuw)

# specify the model and set seed
specification  = specify_bsvar_msh$new(us_fiscal_lsuw, p = 1, M = 2)
set.seed(123)

# estimate the model
posterior      = estimate(specification, 10)

# verify heteroskedasticity
sddr           = verify_volatility(posterior)
summary(sddr)

# workflow with the pipe |>
############################################################
set.seed(123)
us_fiscal_lsuw |>
  specify_bsvar_msh$new(p = 1, M = 2) |>
  estimate(S = 10) |> 
  verify_volatility() |> 
  summary() -> sddr_summary