Re: [R] Grouping variables by a irregular time interval

2013-09-21 Thread Raoni Rodrigues
Arun caught my attention that I committed a mistake with example data set. I send now the correct, with same text explain my problem. Sorry all of you for the confusion. I have a very large data frame (more than 5 million lines) as below (dput example at the end of mail): Station Antenna Tag

[R] Grouping variables by a irregular time interval

2013-09-21 Thread Raoni Rodrigues
Hello all, I have a very large data frame (more than 5 million lines) as below (dput example at the end of mail): Station Antenna TagDateTime Power Events 1 2 999 22/07/2013 11:00:2117 1 1 2 999 22/07/2013 11:33:4731 1 1 2 999 22/0

[R] Grouping variables by a irregular time interval

2013-09-20 Thread Raoni Rodrigues
Hello all, I´m have a very large data frame (more than 5 million lines) as below (dput example at the end of mail): Station Antenna TagDateTime Power Events 1 1 2 999 22/07/2013 11:00:2117 1 2 1 2 999 22/07/2013 11:33:4731 1 3 1 2