hadley/plyr — pull request #188 by krlmlr (2014-01-06 02:32:32+00:00)
Title: Enhancements for *dply

- Generate .id column as factor in ldply(); fixes #137
- New parameter .id for rdply() to specify name of index column (default: .n); fixes #142
- New parameter .id for ldply() to specify name of index column (default: .id); fixes #140; fixes #107

Rebased and edited #177.