MATLAB: Assign patterns to clusters

cluster analysisMATLABStatistics and Machine Learning Toolbox

Hello,

Consider two vectors 1xm, namely vector1 and vector2 and three other ones of the same size, namely v1, v2 and v3.

I calclulate the distances (which don`t have to be the Euclidean),

d(vector1,v1)

d(vector1,v2)

d(vector1,v3)

and

d(vector2,v1)

d(vector2,v2)

d(vector2,v3)

How can I assign the vector1 and vector2 to a cluster with the minimum distance to v1, v2 or v3?

For example,

IF d(vector1,v2).le.d(vector1,v1) AND d(vector1,v2).le.d(vector1,v3) THEN assign vector1 to cluster 2.

I don`t mind doing it with "if-then" or "for-end" or any function.

Thank you.

Best,

Natasha

Best Answer

[mindist, minidx] = min([d(vector1,v1), d(vector1,v2), d(vector1,v3)], 2);

then minidx will be the cluster number.

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