Entropie_13

Last seen: 2 years ago | Active since 2018

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how to use fsolve with multiple variables with unique names, not vectors
Hi, I want to optimise several variables and give them unique names within the function to optimize, so I have something like t...

2 years ago | 3 answers | 0

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Are all iterations saved in resudiuals and jacobian matrix with lsqnonlin?
Hello I estimate a model with [k_optim, resnorm, residual, exitflag, output, lambda, jacobian] = lsqnonlin(f,k0,lb,ub,options...

6 years ago | 0 answers | 0

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Question

Jacabi Matrix of nonlinear regression model with more rows as observations
Hello I have estimated the nonlinear regression model in the added file by the following command: options=optimset('Max...

6 years ago | 0 answers | 0

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Principal Component Analysis or something alike for nonlinear Regression
Hello, code of estimated parameters of an non-linear differential equation model is options=optimset('MaxFunEvals', ...

6 years ago | 0 answers | 0

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Question

How to assess / improve non-linear parameter estimation of differential equation for chemical reaction rates
Hello, in the file equation first three chemical equations for the synthesis of CH3OCH3 appear. Then you see three reaction rat...

6 years ago | 1 answer | 0

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answer

Question

Getting a vector which is calculated during an ode45 function to the main function
Hello, I access an ODE by [z,x]=ode45(@(z,x) ODE_file(z,x,p), z, x0) ; For each step along the z-axis a variable Ri is cal...

6 years ago | 0 answers | 0

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