xueqidong77's articles:

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improve the precision of Matlab 4 10 (11/28/2012 12:28:08 PM) comp.soft-sys.matlab Dear fellows, I am calulating the log likelihood of bivariate normal distribution using the the buillt in function mvncdf. But I always get a lot of -Inf. Is there any solution to get the precise answer? I w... xueqi

calling function 0 16 (7/17/2012 9:15:23 PM) comp.soft-sys.matlab Hi dear all, I really need your help about my problem. It is a little complicated so I hope I can explain it well. Firstly, I have decfine a function as function [ pf ] = ambportfchc (r,lb1,lb2,lb3) t... xueqi

parameter estimation using maximum likelihood 0 38 (7/6/2012 10:36:14 PM) comp.soft-sys.matlab Hi guys, I am recently working on parameters estimation using Matlab and I really don't know where to start. Really appreciate if you can give me some suggestions:). Here is my problem: My model have ... xueqi

optimization result not right 11 36 (6/17/2012 6:03:06 PM) comp.soft-sys.matlab Hi All, I want to optimize a function using femincon. But the result shown is not right and changed with the initial point. Could you tell me how to deal with it? Really appreciate:) Here is my code. fu... xueqi

xueqidong77's replies:

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improve the precision of Matlab 4 10 (11/28/2012 12:28:08 PM) comp.soft-sys.matlab Dear fellows, I am calulating the log likelihood of bivariate normal distribution using the the buillt in function mvncdf. But I always get a lot of -Inf. Is there any solution to get the precise answer? I w... xueqidong77 (8)

optimization result not right 11 36 (6/17/2012 6:03:06 PM) comp.soft-sys.matlab Hi All, I want to optimize a function using femincon. But the result shown is not right and changed with the initial point. Could you tell me how to deal with it? Really appreciate:) Here is my code. fu... xueqidong77 (8)