Re: [Rd] copying promise

2007-09-20 Thread Thomas Friedrichsmeier
Hi, On Thursday 20 September 2007, Gabor Grothendieck wrote: > 1. Is there some way to copy a promise so that the copy has the same > expression in its promise as the original. As far as I am aware (which is not very far at all), there is no way to do this in R code. However, it's fairly simple

[Rd] copying promise

2007-09-19 Thread Gabor Grothendieck
1. Is there some way to copy a promise so that the copy has the same expression in its promise as the original. In the following we y is a promise that we want to copy to z. We want z to be a promise based on the expression x since y is a promise based on the expression x. Thus the answer to the