Re: [R] formatting a 6 million row data set; creating a censoring variable

2011-09-01 Thread Matthew Dowle
icker than plyr, but data.table > may do similar run-oriented operations. > > Bill Dunlap > Spotfire, TIBCO Software > wdunlap tibco.com > >> -----Original Message- >> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] >> On Behalf Of Juli

Re: [R] formatting a 6 million row data set; creating a censoring variable

2011-08-31 Thread William Dunlap
ject.org [mailto:r-help-boun...@r-project.org] On > Behalf Of Juliet Hannah > Sent: Wednesday, August 31, 2011 10:51 AM > To: r-help@r-project.org > Subject: [R] formatting a 6 million row data set; creating a censoring > variable > > List, > > Consider the following data. >

[R] formatting a 6 million row data set; creating a censoring variable

2011-08-31 Thread Juliet Hannah
List, Consider the following data. gender mygroup id 1 F A 1 2 F B 2 3 F B 2 4 F B 2 5 F C 2 6 F C 2 7 F C 2 8 F D 2 9 F D 2 10 F D 2 11 F D 2 12 F