Displaying 1 result from an estimated 1 matches for "calories_obs".
2009 Jan 27
1
Creating list or numeric vectors out of selected columns of row oriented data
...e and the three different
observations change between rows. (There is one row for each day for
each subject over a three year period although some entered the study
late):
'subject_id', 'start_date','observation_date','weight_obs',
'activity_obs','calories_obs'
1,'1/1/2005','1/1/2005',3.26,'a',93
1,'1/1/2005','1/2/2005',3.22,'o',85
1,'1/1/2005','1/3/2005',3.28,'o',91
...
1,'1/1/2005','12/31/2008',4.38,'h',102
2,'2/13/2005','2/13/2005',3.02,...