Multi dimensional data classification

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I have a set of data in matrix form. Where each column is thought to be a single data. Its like for a color dot, each data has three values R,G,B. My data has dimension 10. And number of data is say 1000. I want to group these data set in 4 groups. How do I do that?
Thanks in advance

Accepted Answer

David Young
David Young on 13 Nov 2011
It really depends on what criterion you want to use to determine whether two items of data should be in the same group, so there's no definitive answer. However, one thing you could try would be k-means clustering. There's a MATLAB implementation in the Statistics Toolbox: the function kmeans.

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