R help - Jan 2010 - Anybody can suggest a better method to build a package while ignoring some functions

Hi,
 Say i have three functions in a new package, a,b and c. I only want the one
function "a" to be exported for use. "b" and  "c"
are not very stable.
  If i specify to export all the three functions in the NAMESPACE file
(export(a,b,c)), no errors appeared after checking the package. And i am
sure there should be no errors.
  But if i only export the one function "a" by specifying it in the
NAMESPACE file(export(a)), one error appeared.
  See below.
#### Error ###
* checking examples ... ERROR
Running examples in 's-Ex.R' failed.
The error most likely occurred in:
> ### * b
>
> flush(stderr()); flush(stdout())
>
> ### Name: b
> ### Title: Compute inverse cosine with angle given in degrees
> ### Aliases: ab
> ### Keywords: array
>
> ### ** Examples
> b(theta=30)
Error: could not find function "acos_d"
Execution halted
  Anybody knows where the problem is and how to solve this? Is there better
method to obtain what i want?
  Thanks

-- 
-----------------
Jane Chang
Queen's

	[[alternative HTML version deleted]]

At 01:18 06/01/2010, rusers.sh wrote:
>Hi,
>  Say i have three functions in a new package, a,b and c. I only want the
one
>function "a" to be exported for use. "b" and 
"c" are not very stable.
>   If i specify to export all the three functions in the NAMESPACE file
>(export(a,b,c)), no errors appeared after checking the package. And i am
>sure there should be no errors.
>   But if i only export the one function "a" by specifying it in
the
>NAMESPACE file(export(a)), one error appeared.
Without seeing the text of the functions it is hard to offer advice. 
Try to remove as much as possible from each function until you have a 
minimal reproducible example (as the posting guide asks you).
>   See below.
>#### Error ###
>* checking examples ... ERROR
>Running examples in 's-Ex.R' failed.
>The error most likely occurred in:
> > ### * b
> >
> > flush(stderr()); flush(stdout())
> >
> > ### Name: b
> > ### Title: Compute inverse cosine with angle given in degrees
> > ### Aliases: ab
> > ### Keywords: array
> >
> > ### ** Examples
> > b(theta=30)
>Error: could not find function "acos_d"
>Execution halted
>   Anybody knows where the problem is and how to solve this? Is there better
>method to obtain what i want?
>   Thanks
>
>--
>-----------------
>Jane Chang
>Queen's
>
>         [[alternative HTML version deleted]]
Michael Dewey
http://www.aghmed.fsnet.co.uk