[R] Dumping functions to RCS

[F.Tusell]

>  Sender: bates at franz.stat.wisc.edu
>  Cc: r-help at stat.math.ethz.ch
>  From: Douglas Bates <bates at stat.wisc.edu>
>  Date: 28 Apr 2000 09:08:36 -0500
>  
>  "F.Tusell" <etptupaf at bs.ehu.es> writes:
>  
>  > To keep track of an ongoing  programming project, I would like to dump
>  > all my  functions to individual  ASCII files named xxx.R,  yyy.R, etc.
>  > Presently I do  so manually in order to use RCS  (on a Linux machine),
>  > so I can keep track of all versions, differences, snapshots, etc.
>  > 
>  > Is  there any  easy way  to  dump all  functions in  the workspace  to
>  > individually named files? Thank you very much for any ideas.
>  
>  You can use dump() in a loop over the result of objects().  I added
>  one enhancement below to select only the functions.
>  
>   > sqr <- function(X) X^2
>   > cube <- function(X) X^3
>   > x <- 1:3
>   > for (obj in objects()) {   # produces files sqr.R and cube.R
>   +     if (is.function(get(obj))) {
>   +         dump(obj, fileout = paste(obj, ".R", sep = ''))
>   +     }
>   + }
>  
>  I think the preferred solution is to create your own R package and to
>  use RCS (or CVS) to maintain the source directories for the package.
>  
>  Creating packages for R is actually rather easy now that scripts like
>  
>   R CMD build <pkgname>
>  
>  are available.  The process is described in the manual "Writing R
>  Extensions".
>  
>  -- 
>  Douglas Bates                            bates at stat.wisc.edu
>  Statistics Department                    608/262-2598
>  University of Wisconsin - Madison        http://www.stat.wisc.edu/~bates/
>  

Thank you very much. Thats exactly what I wanted. 
Yes, the creation of an R package seems the way to
go. I'll check "Writing R Extensions".  


ft.
-- 
Fernando TUSELL                                 e-mail:
Departamento de Econometría y Estadística           etptupaf at bs.ehu.es 
Facultad de CC.EE. y Empresariales              Tel:  (+34)94.601.3733
Avenida Lendakari Aguirre, 83                   Fax:  (+34)94.601.3754
E-48015 BILBAO  (Spain)                         Secr: (+34)94.601.3740
PGP: finger etptupaf at bsdx01.bs.ehu.es           http://agesi.bs.ehu.es
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