[R] macro facility in R

Thomas Lumley tlumley at u.washington.edu
Mon Jul 3 18:32:19 CEST 2006

On Mon, 3 Jul 2006, John Sorkin wrote:
> R 2.2 on windows XP
> I have a dataset with multiple columns. Some of the columns represent
> independent variables, some represent dependent variables. I would like
> to run the same analyses on a fixed set of independent variables,
> changing only the dependent variable, e.g.
> y1-y2=x1+x2+x3
> y3-y4=x1+x2+x3
> y5-y6=x1+x2+x3, etc.

Other people have mentioned my defmacro() function in R-news, however when 
I have to do this sort of thing I usually use substitute or bquote

For example

for(i in 1+(1:5)*2){


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