search for: zha

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2008 Jun 01
2
how to analyze time series structures?
...tock exchange determine foreign stock exchange; however, lag values and spot values of the foreign stock exchange affect Turkish stock exchange movement. To calculate the standard errors of the impulse response functions, I should use the modified error bands of Bernanke, Hall, Leeper, Sims and Zha (1996) for the maximum likelihood estimation (MLE). Data structure(time series); for ISE and DJIA daily closing prices from 01.01.1989 to 01.01.2008 in excel format. Also I should provide following spec.; *should fill the missing variables. *the lag order of the identified VAR model is 5 as sugge...
2009 Jun 11
1
Cluster analysis, defining center seeds or number of clusters
...this is not an easy problem. I have looked at principal components (princomp, prcomp) because there is a connection with cluster analysis. It is not obvious to me how to program that connection though. http://en.wikipedia.org/wiki/Principal_Component_Analysis http://ranger.uta.edu/~chqding/papers/Zha-Kmeans.pdf http://ranger.uta.edu/~chqding/papers/KmeansPCA1.pdf Thanks in advance, Alex van der Spek
1999 Dec 20
1
nonlinear least square optimization
...alent to it but with a different name? I'm planning to move part of my from S to R so that I can work comfortablely at home. Any suggestion is highly appreciated. regards, Tony -- \|||/ Q o o Q ==========================oooQ= ( - )====Qooo======================== """ Tony Q. Zhang Micro-electronics Lab. rm422 Electrical and Computer Engineering University of Central Florida Orlando, FL 32816 Office: (407)823-5376 Home: (407)273-3502 **************************************************************************** -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-....
2009 Jul 23
1
[PATCH server] changes required for fedora rawhide inclusion.
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