# stationariry condition.
# for details, see He and Ter\"{a}svirta (2004) and Nakatani and Ter\"{a}svirta (2007).
stationarity <- function(A,B){
G <- A + B
max(Mod(eigen(G)$values))
}
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.