Hello All,
I have this dataset:
RID VISCODE SCRNO RECNO AEWHEN AEONDATE AEONTIME INFPOINT.x
INFDATE.x INFTIME.x INFPOINT.y INFDATE.y INFTIME.y
1 100 w00 IGI1480069 4 2 09/15/2009 1118 1
09/15/2009 947 14 -4 1117
2 100 w00 IGI1480069 8 2 09/15/2009 1132 1
09/15/2009 947 14 -4 1117
3 100 w00 IGI1480069 5 2 09/15/2009 1125 1
09/15/2009 947 14 -4 1117
I have AEONTIME, INFTIME.x, and INFTIME.y, and they are all military times.
I'm trying to do a comparison like this:
match2 = subset(match2, AEONTIME < INFTIME.x)
But it's not working correctly. How do I do this? :-)
THANKS!
Edgar Alminar
Clinical Operations
Alzheimer's Disease Cooperative Study
University of California, San Diego
9500 Gilman Drive, MC-0949
La Jolla, CA 92093-0949
Tel: (858) 622-8798
Fax: (858) 622-5876
Email: [email protected]
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