Hi,
You should be able to now use your own distance measure by
specifying a numerical vector of your distance measure as an input
for the "distance" option. The new version - 2.2-4 - is available via
install.packages("MatchIt",
repos="http://gking.harvard.edu/")
Please let us know if you experience a problem.
Thanks,
Kosuke
---------------------------------------------------------
Kosuke Imai Office: Corwin Hall 041
Assistant Professor Phone: 609-258-6601
Department of Politics Fax: 973-556-1929
Princeton University Email: kimai(a)Princeton.Edu
Princeton, NJ 08544-1012
http://imai.princeton.edu
---------------------------------------------------------
On Dec 1, 2005, at 11:56 PM, Lim, Nelson wrote:
Thank you very much. I didn't mean to create more
work for you though.
-----Original Message-----
From: Kosuke Imai [mailto:kimai@Princeton.EDU]
Sent: Thursday, December 01, 2005 7:23 PM
To: Lim, Nelson
Cc: matchit(a)mail-1.hmdc.harvard.edu
Subject: Re: [matchit] How to use matchit with existing propensity
scores
Thanks for the suggestion. We will make this change in a few days...
Kosuke
---------------------------------------------------------
Kosuke Imai Office: Corwin Hall 041
Assistant Professor Phone: 609-258-6601
Department of Politics Fax: 973-556-1929
Princeton University Email: kimai(a)Princeton.Edu
Princeton, NJ 08544-1012
http://imai.princeton.edu
---------------------------------------------------------
On Dec 1, 2005, at 3:07 PM, Lim, Nelson wrote:
I estimated propensity scores using generalized
boosted regression
model (gbm in R). I would like to use the scores with Matchit. Can I?
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and
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copies
of the original message.
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