How do I find the similarity transformation used in balred?

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Nils 2012-10-5

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https://ww2.mathworks.cn/matlabcentral/answers/49957-how-do-i-find-the-similarity-transformation-used-in-balred

Dear Community,

I have used balred with truncation to perform model reduction but would like to see what similarity transformation is actually used to obtain states in decreasing order of "energy content". I have been using balreal separately but am not sure if that supplies the same transformation as used in balred. Any advise?

Thanks so much!

Nils