Should packages installed with 64-bit GUI of R 2.10 still contain 'R-ex' directories?

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Should packages installed with 64-bit GUI of R 2.10 still contain 'R- 
ex'
directories?

I installed a universal binary of R 2.10 on Leopard (10.5.8) to run  
the
64-bit GUI (R64.app).
I installed all my packages 'At System Level' to

~/Library/Frameworks/R.framework/Versions/2.10/Resources/library/

using a combination of 'install.views()' or by selecting 'local source
package' when packages
were not available on CRAN. For older binaries of R, packages always
installed a directory
'R-ex' with demo scripts that helped me learn how to navigate  
functions.

Was 'R-ex' directory discontinued, or did something change about
installations?
The new method is to type:

example( <function-name> )

As I understand it, the example function pulls the code out the the  
help page itself.
David)
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT