[R] Sourcing commands but delaying their execution

[Dennis Fisher]

Colleagues:

I have encountered the following situation:
	SERIES OF COMMANDS
	source("File1")
	MORE COMMANDS
	source("File2")

Optimally, I would like File1 and File2 to be merged into a single  
file (FileMerged).  However, if I wrote the following:
	SERIES OF COMMANDS
	source("FileMerged")
	MORE COMMANDS

I encounter an error: the File2 portion of FileMerged contains  
commands that cannot be executed properly until "MORE COMMANDS" are  
executed.  Similarly, sourcing FileMerged after MORE COMMANDS does  
not work because MORE COMMANDS requires the information from the  
File1 portion of FileMerged.

I am looking for a means to source FileMerged but not execute some of  
the commands immediately.  Functionally this would look like:
	SERIES OF COMMANDS
	source("FileMerged")	# but withhold execution of some of the commands
	MORE COMMANDS
	COMMAND TO EXECUTE THE WITHHELD COMMANDS

Does R offer some option to accomplish this?

Dennis

Dennis Fisher MD
P < (The "P Less Than" Company)
Phone: 1-866-PLessThan (1-866-753-7784)
Fax: 1-415-564-2220
www.PLessThan.com