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In this page, several extension packages for the statistical software R and a macro for the statistical package SAS written in the framework of my research are presented.
R is a popular open source software tool for statistical analysis and graphics. More information can be obtained from its webpage. Many extension packages are available from the Comprehensive R Archive Network (CRAN) accessible from the R webpage.
I am author of several R extension packages. All of them are available under the GNU license. Package mixAK contains several methods to analyze normal mixtures and perform a model based clustering. Packages smoothSurv and bayesSurv implement mainly methods for the regression analysis with time-to-event type of data (survival analysis). Package glmmAK is devoted to generalized linear mixed models.
The package is described in
The methodology is described and the package used in
This package is available from CRAN.
mixAK on CRAN  
The methodology is described and the package used in
This package is available from CRAN.
smoothSurv on CRAN  
The methodology is described and the package used in
This package is available from CRAN.
bayesSurv on CRAN  
The methodology is described and the package used in
This package is no more available from CRAN.
Source code   Windows binary   Manual      glmmAK on CRAN (archive)  
SAS is a commercial statistical software. Its webpage tells you more. In 2001, I wrote a SAS macro called hetmixed.
The macro itself is documented in my MSc. thesis (Komárek, 2001) from which a manual has been derived.
The macro is freely available to everyone and I guess it still works. You can use it but, please, do not ask any help from me anymore. The macro was written more than 10 years ago and that is also the time I used it actively for the last time.
Source code   Manual   Example code