On Dec 2, 2009, at 3:01 PM, Peter Flom wrote:
Good afternoon
Running R2.10.0 on Windows
I have a data frame that includes (among much else) a factor
(In_2006) and a continuous variable (math_3_4). I would like to
find the 2 cases for In_2006 = 0 that are closest to each case where
In_2006 = 1.
You ask for closest which would imply a singleton, but you also ask
for cases (plural). Define "closest", please.
My data looks like
In_2006 math_3_4
0 55.1
1 51.6
1 18.1
1 26.6
1 14.1
1 9.6
1 48.9
1 12.9
0 63.0
0 51.8
etc. for several hundred rows.
I would like a new data frame that has all the cases where In_2006 =
1, and those cases of In_2006 that are closest to those cases
Thanks in advance
Peter
Peter L. Flom, PhD
Statistical Consultant
Website: www DOT peterflomconsulting DOT com
Writing; http://www.associatedcontent.com/user/582880/peter_flom.html
Twitter: @peterflom
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
