Displaying 2 results from an estimated 2 matches for "cao0073505".
2010 Mar 10
2
ordering columns in a data frame
...CAO0059680 2002-12-05
582 CAO0059680 2003-09-16
585 CAO0059680 1997-04-18
586 CAO0059680 2007-06-18
589 CAO0059680 2005-03-20
659 CAO0065288 2006-07-01
682 CAO0070694 2007-09-13
685 CAO0070694 2006-08-22
695 CAO0072477 2003-06-04
696 CAO0072477 2004-07-05
718 CAO0073505 1998-09-15
720 CAO0073505 1989-09-18
725 CAO0073505 2000-11-22
727 CAO0073505 1991-08-23
I have managed to order it by PROCHI number using orderBy(PROCHI, data=dd)
what I need to do is order by PROCHI then by date of admission so that date
of admission is ascending by PROCHI ascen...
2010 Mar 04
1
Date conversion problem
...I've manage to convert some of my character columns to a date
format using as.Date(x, format="%m/%d/%y").
An example of one of my dates is
PROCHI DtDeath icdcucd date_admission1 date_admission_2
CAO0004563 <NA> <NA> 2005-09-01 <NA>
CAO0073505 <NA> <NA> 1998-03-05 <NA>
CAO0079987 <NA> <NA> 2002-04-14 <NA>
CAO0182089 <NA> <NA> 2007-06-10 11/06/07
CAO0194809 17/02/2005 I64 2004-09-04 14/02/05
CAO0204000...