hello:
   Do any one know how to set sweave option by variable, for example I want
set some of my selected code chunk with:
<<eval=needRun>>= rather than <<eval=TRUE>>=, so  I can change the action
only in the head by change the variable "needRun" one times.
I have tried use "\Def" and "\newcommand", both do not work, so I suppose it
is related with R/Sweave its self.
thanks for any good suggestion.

	[[alternative HTML version deleted]]

