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2024年4月16日发(作者:input函数怎么用python)
BEKK—GARCH模型之Matlab编程
function [parameters, loglikelihood, Ht, likelihoods, stdresid, stderrors,
A, B, scores] = full_bekk_mvgarch(data,p,q, BEKKoptions)
% PURPOSE:
% To Estimate a full BEKK multivariate GARCH model. ****SEE WARNING AT
END OF HELP FILE****
%
%
% USAGE:
% [parameters, loglikelihood, Ht, likelihoods, stdresid, stderrors, A, B,
scores] = full_bekk_mvgarch(data,p,q,options);
%
%
% INPUTS:
% data - A t by k matrix of zero mean residuals
% p - The lag length of the innovation process
% q - The lag length of the AR process
% options — (optional) Options for the optimization(fminunc)
%
% OUTPUTS:
% parameters - A (k*(k+1))/2+p*k^2+q*k^2 vector of estimated
parameteters。
% For any k^2 set of Innovation or AR parameters X,
% reshape(X,k,k) will give the correct matrix
% To recover C, use ivech(parmaeters(1:(k*(k+1))/2)
% loglikelihood — The loglikelihood of the function at the optimum
% Ht - A k x k x t 3 dimension matrix of conditional covariances
% likelihoods — A t by 1 vector of individual likelihoods
% stdresid — A t by k matrix of multivariate standardized residuals
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