[R] Generating bivariate or multivariate data with known parameter values

[thelozee_x]

David Kaplan-2 wrote:
> 
> Greetings,
> 
> I'm interested in generating data from various bivariate or 
> mulitivariate distributions (e.g. gamma, t, etc), where I can specify 
> the parameter values, including the correlations among the variables.  I 
> haven't been able to dig anything up on the faq, but I probably missed 
> something.  A nudge in the right direction would be appreciated.
> 
> David
> 
> 
> -- 
> ========================================================================
> David Kaplan, Ph.D.
> Professor
> Department of Educational Psychology
> University of Wisconsin - Madison
> Educational Sciences, Room 1061
> 1025 W. Johnson Street
> Madison, WI 53706
> 
> email: dkaplan at education.wisc.edu
> Web:   http://www.education.wisc.edu/edpsych/facstaff/kaplan/kaplan.htm
> Phone: 608-262-0836
> Fax:   608-262-0843
> 
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> 

i'm interesting to use multivariate gamma distributed gamma data, in
 copula packages, you say that it can generate bivariate gamma
 distribution, i have try this and succes. my question, 
1. are the copula can be used for generating multivariate gamma
 distributed gamma data?
2. when i try to generating bivariate gamma, can i set the correlation?
 for knowing, i have try many combination of parameters, but the result
 is taht correlation value is about 0.5.

thankyou very much for your responses.

dian
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