Is there a data frame operation to do this? +---------+ | A B C D | +---------+ | 1 2 3 4 | | 5 6 7 8 | +---------+ +---------+ | A B C D | +---------+ | 3 5 6 8 | | 0 0 0 0 | +---------+ +---------+ | A B C D | +---------+ | 8 8 8 8 | | 1 1 1 1 | +---------+
Concatenated together to make this. +---------+ | A B C D | +---------+ | 1 2 3 4 | | 5 6 7 8 | | 3 5 6 8 | | 0 0 0 0 | | 8 8 8 8 | | 1 1 1 1 | +---------+ Thanks, Andrew
