Error in using fitgmdist

Hi, I'm try to use fitgmdist to cluster high dimensional data with size of 96*879. Using

gmfit = fitgmdist(data,3,' CovarianceType','full','RegularizationValue',0.1);

Then error occurs:

X must have more rows than columns.

How can I fix this?

Thanks.

Answer 1

[Jorge]

The number of colums in data (879) corresponds to the dimensionality of the data. The number of rows (96) is the number of observations.

You may need to transpose your data before using it.

[Jorey]

I think this can change the structure of the data for clustering, as using X is clustered according to rows, i.e., samples, but using X' is clustered according to variables. This can cause false conclusions, am I right?

[Jorge]

You are right. I'm assuming that your data is composed of 879 samples, each sample with a dimensionality of 96. If that is the case, then you should pass data' (transposed) instead of data. If that is not the case, then you can't use fitgmdist.

[Jorey]

Thanks.