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Yanxin Liu


Last seen: 2 years ago |  Active since 2021

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Provide Jacobian matrix to ode15i for solving DAE system
As introduced by the help page of ode15i http://matlab.izmiran.ru/help/techdoc/ref/ode15i.html, providing Jacobian (df/dy, df/dy...

2 years ago | 1 answer | 0

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Question


Non-linear curve fitting fail to converge
I'm using the curve fitting toolbox to fit the data to a function: y = a*(1-b*exp(-c*x)-(1-b)*exp(-d*x)). For a certain group o...

3 years ago | 0 answers | 0

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Unrecognized function or variable 'fitrnet'.
I have "Statistical and Machine Learning' package in my Matlab. But I can't use "fitrnet" function as introduced here https://ww...

3 years ago | 1 answer | 0

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for loop won't stop using break
I'm using ARMA to simulate and predict a series of data. "i" represens the number of pre-sample for ARMA estimate and "j" repres...

4 years ago | 1 answer | 0

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