I don't see a quick solution to this.

You could contact the maintainer of the rpart.plot package, Stephen 
Milborrow

     maintainer("rpart.plot")

or you could try to modify the rpart.plot() function yourself to meet your 
needs

     rpart.plot

Jean


Jay wrote on 08/25/2011 05:30:25 AM:
> 
> While I'm very pleased with the results I get with rpart and
> rpart.plot, I would like to change the scientific notation of the
> dependent variable in the plots into integers. Right now all my 5 or
> more digit numbers are displayed using scientific notation.
> 
> I managed to find this:
> http://tolstoy.newcastle.edu.au/R/e8/help/09/12/8423.html
> but I do not fully understand what to change, and to what.
> 
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide 
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

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