Here is a paper that gives an review of matching Elizabeth A. Stuart. (2010) Matching Methods for Causal Inference: A Review and a Look Forward. Statistical Science; 25(1):1-21.
In the paper, there is a list of R packages that does matching. hope this helps. On Tue, Feb 1, 2011 at 2:01 PM, Bill Hyman <billhym...@yahoo.com> wrote: > May I ask a clinical question? For a trial, we have a treatment group of > small > size, say 30 patients. We want to selectmatching control patients from a > bigger > group (100 patients) in terms of several clinical variables, such as age, > tumor > stage etc. This practice is to select the closest matching set of control > cases. > I wonder if R has any routine or package that can help with this problem. > Thank > you. Looking forward... > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.