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                               File INSTALL.TXT
         Downloading and installing TRFRAC and its interface to Splus
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TRFRAC is a set of programs for the computation of the robust residual autocorrelation
estimates. As TRFRAC requires ROBETH, before installing RTFRAC you need to install ROBETH. 
TRFRAC is available at the URL:

          http://www.iumsp.ch/Unites/us/msp_us.htm (=> software)

Downloading
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(a) For Splus 2000, copy the following files in a temporary directory:

    trfwin.exe    (object files, self extracting zip file;  april 2005)

(b) For R (version >= 1.5.1) / Windows

    trfR_win.exe  (DLL+source, self extracting zip file;    april 2005)

(c) For Splus 6.x / Windows

    trfwin_v6.exe (object files, self extracting zip file;  april 2005)

I) Installation for Splus or R under Windows:
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1. Execute the self-extracting file 

   trfwin.exe (or trfwin_v6.exe for Splus 6.x or trfR_win.exe for R)
   
   The name of the directory where the file will be "unzipped" must 
   be entered. For a standard installation, it is:

             c:\Program Files\sp2000\library 
   or      
             c:\Program Files\splus6\library
   or
             c:\Program Files\R\rwNNN\library


   Remark: Installation for Splus 3.x/Windows is no more available.  

2. To invoke the library 
   a) under Splus, use the Splus commands:

   > library(robeth,T)
   > library(trfrac,T)

   b) under R, use the R commands:
   > library(robeth)
   > library(trfrac) 

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