1. 2007-03-01 Re: [R] What is a expression good for? r-help Gabor Grothendieck 2. 2007-02-28 Re: [R] What is a expression good for? r-help Alberto Vieira Fer 3. 2007-02-28 Re: [R] What is a expression good for? r-help Bert Gunter 4. 2007-02-28 [R] What is a expression good for? r-help Alberto Monteiro