[R] Comment blocks in R programs

[Joe Byers]

All,

Is there a way to add comment blocks in an R script other than using # 
at the beginning of each line?  Or, is there anything like ndocs for C++ 
and the markup for Java that can generate documentation?

This may be a bad question, but I have searched R documentation and 
can't seem to find an Answer.  I have also looked at the R package 
documentation mark up docs for help files but that was more than I wanted.


thank you for you help.
Joe