How to change R file in stats?

-----Original Message-----
I have changed some code in R file inside the stats package 
(dendrogram.R). 

That was brave. Others have already commented on its wisdom...

Now I wan to test and run the stats package 
with the new updated code, what should I do in detail?

1. Read and follow the instructions in 'Writing R extensions' to build an installable .tar.gz or (for windows) .zip binary of the stats package. 
2. Back up your copy of R.
3. Install the newly built stats package in the normal way.
4. Test.
5. Revert to the backup.

Safer still to create a different installation of  R locally and apply the new package install to that.

S

*******************************************************************
This email and any attachments are confidential. Any use...{{dropped:8}}