[R] how can I evaluate a formula passed as a string?

Hey everyone, I've been using 'R' long enough that I should have some idea of what the heck either expression() or eval() are really ever useful for. I come across another instance where I WISH they would be useful, but I cannot get them to work. Here is the crux of what I would

Re: [R] how can I evaluate a formula passed as a string?

On Thu, Jun 24, 2010 at 10:16 AM, Mike Williamson this.is@gmail.com wrote: Hey everyone,    I've been using 'R' long enough that I should have some idea of what the heck either   expression()  or eval()  are really ever useful for.  I come across another instance where I WISH they would

Re: [R] how can I evaluate a formula passed as a string?

Thank you, Peter! I sure love this help group!! :) Telescopes and bathyscaphes and sonar probes of Scottish lakes, Tacoma Narrows bridge collapse explained with abstract phase-space maps, Some x-ray slides, a music score, Minard's Napoleanic war: The most exciting frontier is charting