[R] Intersection for two curves

[Carl Witthoft]

<quote> Well it sounds like you won't lose any work, but you will lose 
some time. But why not open another session of R for R-help questions? 
Then you're never in any danger. I often have four or five instances of 
R running for different projects.

Hadley
</quote>

Well for one thing you turkey,  OS X will not under normal circumstances 
open two instances of a given app. Don't be Windows-centric.

And as Gabor said, why post bad code in the first place?  rm(list=ls()) 
is practically a cliche precisely because it's nuclear and should never 
be used anywhere.

Typical code listed in package help files may end with unlink([stuff]), 
which makes far better sense than, e.g.  unlink(*.*)  .

Carl