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Published 20 hours ago • verified publisher icon sccn

Issue in s4sid_CCA

Open hfj6 opened this issue 2 years ago • 2 comments

how to deal with the code line 84 'forward weight matrix not positive-definite');Some data do, some data don't.

hfj6 avatar May 15 '23 03:05 hfj6

Hi, would you mind sharing instructions on how to reproduce the error, perhaps with some data if possible?

nguyen-td avatar May 22 '23 15:05 nguyen-td

This is a simulation program to obtain a dynamic response of the structure under white noise excitation, which often has problems, as follows: 错误使用 assert forward weight matrix not positive-definite

出错 s4sid_CCA (第 85 行) assert(cholp == 0, 'forward weight matrix not positive-definite'); There is no such problem in the actual data. What could be the cause?

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hfj6 avatar Oct 17 '23 03:10 hfj6