1. 2008-05-09 Re: [R] Data frame row manipulation r-help Jorge Ivan Velez 2. 2008-05-09 [R] Data frame row manipulation r-help Chip Barnaby 3. 2007-08-31 Re: [R] data frame row manipulation r-help Gabor Grothendieck 4. 2007-08-31 [R] data frame row manipulation r-help Calle