[R] function environment

[Martin Maechler]

>>>>> "Roger" == Roger D Peng <rdpeng at gmail.com>
>>>>>     on Fri, 02 Jun 2006 13:03:12 -0400 writes:

    Roger> Try

    Roger>   save(A, B, file = "myfun.r")
    Roger>   attach("myfun.r")

    Roger> Your functions will be on the search list.

yes.   But do yourself (and your readers/users/..) a favor by
using a different file extension: ".r" is used in place of ".R"
(mainly by people who work on (non-)operating systems that do not
 properly differentiate between lower and upper case) for  R
source files.
Files resulting from save() typically get an extension ".rda"
(or also ".Rdata").

Martin
    Roger> -roger

    Roger> Matthias Braeunig wrote:
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    >> 
    >> Hi,
    >> 
    >> how can I automatically access the functions that I loaded into a
    >> separate environment?
    >> 
    >>> save(A,B,file="myfun.r")
    >>> load("myfun.r",envir=(ENV<-new.env()))
    >>> ls(ENV)
    >> [1] "A" "B"
    >> 
    >> ?"[" turned up that I can access the functions via
    >> 
    >>> ENV$A
    >> function ()
    >> {
    >> }
    >>> ENV$A()
    >> NULL
    >> 
    >> Now, how can they be included in the search() path??
    >> attach() as for data.frames does not work...
    >> 
    >> Furthermore, if I change a functions environment to ENV, why is it not
    >> listed with ls(ENV)?? Instead it still lives in .GlobalEnv
    >> 
    >>> C<-function(){}
    >>> environment(C)<-ENV
    >>> ls(ENV)
    >> [1] "A" "B"
    >>> C
    >> function(){}
    >> <environment: 0x9cbbb58>
    >>> ENV
    >> <environment: 0x9cbbb58>
    >> 
    >> Thanks folks!
    >> I enjoy reading and learning from r-help list!
    >> 
    >> M
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    >> 
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    Roger> -- 
    Roger> Roger D. Peng  |  http://www.biostat.jhsph.edu/~rpeng/

    Roger> ______________________________________________
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