Why does this Error is shown when we use kmeans clustering : X must have more rows than the number of clusters.

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Pradya Panyainkaew 2018-1-3

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https://ww2.mathworks.cn/matlabcentral/answers/375384-why-does-this-error-is-shown-when-we-use-kmeans-clustering-x-must-have-more-rows-than-the-number-o

评论： Pradya Panyainkaew 2018-1-8

I have a matrix size 8688x100 and I try to use kmeans function to cluster these data points into various number of cluster such as 2, 3, 4 and 5, respectively. However, matlab software show a message "Error using kmeans X must have more rows than the number of clusters.". How can I fix it ?

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Answer 1

A. P. B. 2018-1-4

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https://ww2.mathworks.cn/matlabcentral/answers/375384-why-does-this-error-is-shown-when-we-use-kmeans-clustering-x-must-have-more-rows-than-the-number-o#answer_298757

In the kmeans documentation kmeans(X,k) .. here X is a n by d matrix where n is the number of instances and d is the dimension so your data X = 8688x100 you cluster your data into 5 clusters . Try this: kmeans(X(:),5)