[R] function design

[Michaell Taylor]

I have a, no doubt, simple question. I wish to write a function such
that 

a <- 9
b <- 10
changer _ function(x,y) { if (y>x){ x <<- Y+1}}

Of course there are easier ways to accomplish the task above, but I am
more interested in how to have the "x <<- Y+1" part of the function to
change x in place for purposes of a much larger function.

I have been wrestling with various forms of the assign, as.name,
deparse, substitute (by now you probably sense a air of desperation)
commands, and permuations thereof.

These variables will be in a detached data.frame (not shown here).

Thanks for your time.

Michaell


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