Ryan Moore has an R package called blocking you might look into.
On 11/4/10, Prashant <presearchwork(a)gmail.com> wrote:
Dear all,
I read a past matchit post from 2007 (Prof. Imai) that matchit can't
conduct matching (say in pairs) before randomization.
He introduced his R program "experiment" which can conduct matching in
pairs before randomization using an optimal matching method.
Is there any program available to conduct optimal matching in
equal-size blocks where the units in each block is more than 2 (i.e.
where there are more than two treatment groups)?
If not, I would most appreciate any practical advice whatsoever on
what would be the best way to match before randomization when there
are more than two treatment groups and if there is any software
available for this purpose.
Thank you kindly,
Prashant
--
MatchIt mailing list served by Harvard-MIT Data Center
List Address: matchit(a)lists.gking.harvard.edu
Subscribe/Unsubscribe:
http://lists.gking.harvard.edu/?info=matchit
MatchIt Software and Documentation:
http://gking.harvard.edu/matchit/
Browse/Search List Archive:
http://lists.hmdc.harvard.edu/lists/matchit/
--
Gary
---
http://gking.harvard.edu
--
MatchIt mailing list served by Harvard-MIT Data Center
List Address: matchit(a)lists.gking.harvard.edu
Subscribe/Unsubscribe:
http://lists.gking.harvard.edu/?info=matchit
MatchIt Software and Documentation:
http://gking.harvard.edu/matchit/
Browse/Search List Archive:
http://lists.hmdc.harvard.edu/lists/matchit/