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Eyalzohav
Level I

How to match between case and control

I would like to know how to create matched conttol to cases in 1:1 and 1:N ratio. The matching is based on age, weight, year of the experiment and kind of treatment. And also to be able to define the tolerance factor for continous psrameters, In spss i managed to do so. Thank you very much
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jiancao
Staff

Re: How to match between case and control

You can run JMP Pro's K Nearest Neighbors if there is a reponse Y, or hierarchical cluster analysis if there is none. Then use KNN's Save Near Neighbor Rows output or Save Distance Matrix output from hierarchical clustering to find matche(s). 

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