search for: reichenb

Displaying 1 result from an estimated 1 matches for "reichenb".

2009 Sep 23
1
Maximum Likelihood Est. regarding the degree of freedom of a multivariate skew-t copula
...the value of the loglikelihood-function purple the starting parameters and the optim() PROBLEM: Executing the likelihood-function by it self takes half a minute. The optim() even longer. But I need several iterations. (maybe 1000 or even more) Is there a way to make it faster???? THX, John Reichenb?cher PS: The attachment are the time series, that are used data<-read.table("NIKKEI.txt", header=T) attach(data) data<-read.table("DAX.txt", header=T) attach(data) my_dax<-mean(dax) sd_dax<-sqrt(var(dax)) my_nik<-mean(nik) sd_nik<-sqrt(var(nik)) P_dax&l...