R devel - Feb 2008 - Namespace and function open

Hello,

I built a package, everything was working very well. Now I included a 
NAMESPACE to export only some variables. (export(f, g, ...) )
Everything is working fine, except one function. There I get an error:

Fehler in UseMethod("open") : keine anwendbare Methode f?r
"open"

In this function I use the function "open" to generate an output bar.

*    if (verbose) {
      pbt <- new("ProgressBarText", length(ids), barsteps =
as.integer(20))
      open(pbt)
    }
   
    for (i in seq(along=ids)) {
   
      if (verbose) {
        update(pbt)
      }

How I have to change my NAMESPACE file to fix this problem?

Thanks
Markus Schmidberger


*

>>>>> "MS" == Markus Schmidberger <schmidb at
ibe.med.uni-muenchen.de>
>>>>>     on Fri, 15 Feb 2008 15:47:16 +0100 writes:
    MS> Hello, I built a package, everything was working very
    MS> well. Now I included a NAMESPACE to export only some
    MS> variables. (export(f, g, ...) ) Everything is working
    MS> fine, except one function. There I get an error:

    MS> Fehler in UseMethod("open") : keine anwendbare Methode
    MS> f?r "open"

    MS> In this function I use the function "open" to generate
    MS> an output bar.

    MS> * if (verbose) { pbt <- new("ProgressBarText",
    MS> length(ids), barsteps = as.integer(20)) open(pbt) }
   
    MS>     for (i in seq(along=ids)) {
   
    MS>       if (verbose) { update(pbt) }

    MS> How I have to change my NAMESPACE file to fix this
    MS> problem?

You also have to export the *methods* for the open() generic:

exportMethods("open")


    MS> Thanks Markus Schmidberger

you're welcome,
Martin M?chler