Is the correlation distance function for training self-organizing map (SOM) available in Matlab?

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Nancy
Nancy 2011 年 11 月 1 日
編集済み: Image Analyst 2013 年 10 月 20 日
Hi.
I have a data set of expression levels of different genes, and I want to build a SOM to cluster different gene expression levels. Now I really need to use correlation distance metric to train the map.
I noticed that in Matlab there are four distance functions are available : dist, linkdist, mandist, boxdis. Normally, dist (refers to Euclidean distance) is widely used. And also, I can find the correlation distance can be obtained by using D = pdist(X,'correlation') .
Is it possible that train a SOM using correlation distance function in Matlab?
Thanks.
  1 件のコメント
eng keong
eng keong 2012 年 2 月 22 日
Hi there, would like to know how do you update your distant when you use Correlation?

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回答 (1 件)

Amith Kamath
Amith Kamath 2011 年 11 月 2 日
I don't know if MATLAB has in-built functions to handle those aspects of SOM, but this may help:
Thanks!

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