R help - Nov 2007 - How do I import packages with the package I've built?

I have successfully completed building a package to contain the
functions I commonly use.  However, I need to have other packages
installed in order for some of my functions to work.  I've been studying
the instructions on installing packages for about a month now, but still
haven't figured this one out.  From what I do understand, to import
additional packages I need some combination of commands in my
DESCRIPTION and NAMESPACE files.  Currently, these are what mine look
like:

DESCRIPTION
Package: myPackage
Type: Package
Title: Commonly used functions.
Version: 1.0
Date: 2007-11-08
Author: My Name
Maintainer: My Name <myfault at somewhere.net>
Description: Blah Blah Blah
License: R 2.3.0
Depends: MASS, survival


NAMESPACE
export(func1, func2, ... , funcx)

import(MASS, survival)


These pass all the checks, and the package installs just fine, but it
doesn't load MASS and survival when I load myPackage.  What am I doing
wrong?

Benjamin


P Please consider the environment before printing this e-mail

Cleveland Clinic is ranked one of the top hospitals
in America by U.S. News & World Report (2007).  
Visit us online at http://www.clevelandclinic.org for
a complete listing of our services, staff and
locations.


Confidentiality Note:  This message is intended for use\...{{dropped:13}}

There is a difference between importing a namespace and loading a package:

If you import functions from a namespace into your package, these 
functions are known within that namespace, i.e. functions from your 
package's namespace know the other functions and can use them. The user 
still won't see those imported functions while working on the top level.
If you want the latter, you have to load the other package explicitly, 
e.g. in your .onLoad directives.

Uwe Ligges


Nutter, Benjamin wrote:
> I have successfully completed building a package to contain the
> functions I commonly use.  However, I need to have other packages
> installed in order for some of my functions to work.  I've been
studying
> the instructions on installing packages for about a month now, but still
> haven't figured this one out.  From what I do understand, to import
> additional packages I need some combination of commands in my
> DESCRIPTION and NAMESPACE files.  Currently, these are what mine look
> like:
> 
> DESCRIPTION
> Package: myPackage
> Type: Package
> Title: Commonly used functions.
> Version: 1.0
> Date: 2007-11-08
> Author: My Name
> Maintainer: My Name <myfault at somewhere.net>
> Description: Blah Blah Blah
> License: R 2.3.0
> Depends: MASS, survival
> 
> 
> NAMESPACE
> export(func1, func2, ... , funcx)
> 
> import(MASS, survival)
> 
> 
> These pass all the checks, and the package installs just fine, but it
> doesn't load MASS and survival when I load myPackage.  What am I doing
> wrong?
> 
> Benjamin
> 
> 
> P Please consider the environment before printing this e-mail
> 
> Cleveland Clinic is ranked one of the top hospitals
> in America by U.S. News & World Report (2007).  
> Visit us online at http://www.clevelandclinic.org for
> a complete listing of our services, staff and
> locations.
> 
> 
> Confidentiality Note:  This message is intended for use\...{{dropped:13}}
> 
> ______________________________________________
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