Dear list members, I'm trying to use DCC-GARCH model to estimate the correlation. I have downloeaded ccgarch packeage but can't understand some argument in the formula. dcc.estimation(inia, iniA, iniB, ini.dcc, dvar, model, method="BFGS", gradient=1, message=1) which is on R.Help I understand others except "ini.dcc" which is described as "a vector of initial values for the DCC parameters (2 ? 1)". Does anyone know that? In the example it is set as c(0.01,0.98), but i have no idea where the numbers come from. Another question is how to estimate DCC of known structural break. Let's say, we have already known the break point A and establish a restricted model.Use this model to estimate DCC. Then do likelihood test with unrestricted model( no structural break) to see if it is significant. But I have no idea how to establish the restricted model. I know in the restricted model, I have to use different rho,(use rho(1~A) and rho(A~n) instead of rho(1~), but how to identify this difference in R ? I can't do it by myself. Does anyone have any idea? I appreciate it! Thank you in advance! Zoe -- View this message in context: http://r.789695.n4.nabble.com/Questions-about-DCC-GARCH-Model-tp3679130p3679130.html Sent from the R help mailing list archive at Nabble.com.