I'd like to calculate the matches between observations across a set of binary variables. I suspect that there are multiple ways to do this. I've specified:
matrix dissimilarity m=x1 x2 x3 x4, match proportion
However, some values in x1-x4 are missing. Based on the results, it appears that Stata treats missing values as if they were 1 and I don't see how to modify that. I'd like to calculate to calculate similarities across only non-missing elements (the number of which will be different for each pair, of course).
Thanks for any help.
Zach Elkins
______________________________
Zachary Elkins
Assistant Professor
Department of Government
University of Texas at Austin
1 University Station A1800
Austin, TX 78712-0119
p: (512) 232-7250
f: (512) 471-1061
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