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Documentation examples for lm and glm

S Ellison 
FWIW, before all the examples are changed to data frame variants, I think there's fairly good reason to have at least _one_ example that does _not_ place variables in a data frame. 

The data argument in lm() is optional. And there is more than one way to manage data in a project. I personally don't much like lots of stray variables lurking about, but if those are the only variables out there and we can be sure they aren't affected by other code, it's hardly essential to create a data frame to hold something you already have. 
Also, attach() is still part of R, for those folk who have a data frame but want to reference the contents across a wider range of functions without using with() a lot. lm() can reasonably omit the data argument there, too.

So while there are good reasons to use data frames, there are also good reasons to provide examples that don't.

Steve Ellison
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Thomas Yee Documentation examples for lm and glm Dec 13 Ben Bolker Documentation examples for lm and glm Dec 13 S Ellison Documentation examples for lm and glm Dec 14 David Hugh-Jones Documentation examples for lm and glm Dec 14 Achim Zeileis Documentation examples for lm and glm Dec 15 frederik m@ili@g off ofb@@et Documentation examples for lm and glm Dec 15 Achim Zeileis Documentation examples for lm and glm Dec 16 Thomas Yee Documentation examples for lm and glm Dec 16 Martin Maechler Documentation examples for lm and glm Dec 17 S Ellison Documentation examples for lm and glm Dec 17