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I want to perform k-means clustering on sift features which is in the form of a 509X508 matrix.I got a code for k-means clustering from mathworks. But i don't know how to give input for the algorithm. Pls help...

user3627439
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From here.

IDX = kmeans(X,k) partitions the points in the n-by-p data matrix X into k clusters. . Rows of X correspond to points, columns correspond to variables. kmeans returns an n-by-1 vector IDX containing the cluster indices of each point.

shujj
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