| To: | <s-news@lists.biostat.wustl.edu> |
|---|---|
| Subject: | Plotting correlation/distance in a 2D space |
| From: | "Benoist, Christophe" <Christophe.Benoist@joslin.harvard.edu> |
| Date: | Wed, 29 Sep 2004 20:23:39 -0400 |
| Thread-index: | AcSmg7t8vsTMMN2rT8yjmOzdTZshlw== |
| Thread-topic: | Plotting correlation/distance in a 2D space |
Dear colleagues, We are looking for a function that would generate 2D spatial coordinates to reflect the correlation between a collection of objects. The input is an NxN matrix that gives the correlation coefficients between any two of N elements. The goal would be to generate an Nx2 matrix that holds x and y coordinates for each element, optimized such that the distance between two elements in the 2D space is proportional (linear, other??) to the correlation coefficient. N is large (several hundreds or thousands). Apologies if this is a computationally or mathematically naive question. Thanks, Christophe Benoist Christophe Benoist Joslin Diabetes Center cb@joslin.harvard.edu |
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