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st: Merging datasets
From
Oybek Rustamov <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: Merging datasets
Date
Sun, 9 Oct 2011 21:30:14 +0100
Dear All
Could you help me with merging my two datasets. In my datasets some patients had more than two treatment cycles and number of blood tests. I need to merge blood results that is closest to treatment date and before the treatment date.
This is example of my datasets.
1) Treatment dataset
Patient ID Treatment date
A. 01/01/09
A. 05/07/10
B. 10/10/10
B. 12/10/11
2) Blood results dataset
Patient ID Test date
A. 12/12/2008
A. 10/09/2008
A. 01/01/2011
B. 10/09/2009
B. 03/09/2010
B. 04/05/2011
Many thanks
Oybek
Sent from my iPhone
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