[R] mice package

Nathan Paxton napaxton at fas.harvard.edu
Wed Aug 8 20:36:39 CEST 2007

	Hi all,

	I am trying to run the mice package (for multiple imputation) on a  
data frame that is 5174 x 100. When I run mice(frame), I get the  
following response:
Error in solve.default(t(xobs) %*% xobs) :
	Lapack routine dgesv: system is exactly singular

and execution stops.

	I'm no expert at matrix algebra, so if someone could explain this to  
me and what I can do to get around it, I'd be very appreciative.


Nathan A. Paxton
Ph.D. Candidate
Dept. of Government, Harvard University

Resident Tutor
John Winthrop House, Harvard University

napaxton AT fas DOT harvard DOT edu
When you have to stay eight years away from California, you live in a  
perpetual state of homesickness.
         - Ronald Reagan

The most courageous act is still to think for yourself.  Aloud.
         -Coco Chanel

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