已回答
Curve fitting tool with 4 variables
Hi, Mahesh, if you don't care the formation of the fitting equation, try the follows: y = sin((((((p1-x3)^2)*x3)/(((x3^2)^(x2^p...

5 years 前 | 1

已回答
How to fix error of this type: "Failure in initial user-supplied objective function evaluation. FSOLVE cannot continue"
Hi，“z(2).z(1)” should be "z(2).*z(1)"

5 years 前 | 0

已回答
Curve fitting tool with 4 variables
Attach your data file please.

5 years 前 | 1

已回答
Improving fit of custom function
Hi, what is the function you want to fit? y= A+m*x+(B+n*x)/(1+10^(-((x-C)/D))) or y= A+m*x+(B+n*x)/(1+exp(-((x-C)/D))) if th...

5 years 前 | 0

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continuity of a fit function in different regions
Attach your data file please.

5 years 前 | 0

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Fit convergence to degenerated model - a reasonable expectation?
Hi，Dev-iL，theoretically，the SSE of f2 should be less or equal to that of f1, since f1 is the special case of f2, when b3=0. Als...

5 years 前 | 0

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How to solve 4 equations with 4 unknowns with bounds?
Refer the results below: x1: 7.73410323214524 x2: 32.0801819920043 x3: 33.4573119565274 x4: 11.2688338748665

5 years 前 | 0

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Solving Multivar Non-Linear Regression from a Data Set
try the function below: z = (p1+p2*x+p3*y)/(1+p4*x+p5*y)+p6; where z: moisture content; x: temperature; y:humidity Root of Me...

5 years 前 | 0

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Fit convergence to degenerated model - a reasonable expectation?
Hi, I think you may make wrong calculation: with function of "f1(T) = A/( exp(B1/T + B2/T^2 ) + C )", the result is: R...

5 years 前 | 0

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solve a system of equations
There are multi-solutions: 1: x: -4.93419751895286 y: -16.1073500969731 r: 327.876127534353 2: x: -3.55619697118012 y: -8...

5 years 前 | 0

已回答
How can i linearise this equation in matlab? y=a*x*e^b*x
by linearization, the results are： a: 9.66178585962543 b: -2.47330876570272 While if using nonlinear regression fitting direc...

5 years 前 | 0

已回答
How to use multistart with 'fit' function
Multi-solutions (Parameter a is different): 1: Root of Mean Square Error (RMSE): 0.109662308225183 Sum of Squared Residual: 0...

5 years 前 | 0

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How to fit data to a Weibull bi-modal function ? nlinfit? lsqcurvefit?
please refer the results below: c1 6.93726775107201 c2 2.61789361078231 c3 5.06299442732144 c4 4.41925787462909 or: c1 5.0...

5 years 前 | 0

已回答
Curve Fitting for Forced Damping
Where are your data?

5 years 前 | 1

已回答
Fitting multiple Datasets with shared and individual Parameters.
Hi, Fabian Bienen, if possible please upload your data here, I may try to solve it.

5 years 前 | 0

已回答
Line search algorithm: nonlinear least squares method for fitting experimental data to a model
Please upload your data，I may try.

5 years 前 | 1

已回答
Non Linear Fit help?
For the fitting function: F = (((K.*(Vg-V).^(b+1)).^(-1))+R).^(-1); Obviously，should be: V < min(Vg) = 0, the reuslt may be: ...

5 years 前 | 0

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fsolve message "Equation solved, inaccuracy possible"
Multi-solutions: 1: x1: 1.00788811123075E-6 x2: 0.0083586258586415 x3: 0.0330975342164431 x4: 0.000243072462467804 x5: 4.2...

5 years 前 | 0

已回答
problem solving nonlinear equation system with fsolve
here are solutions: x1: 1.80929329243556 x2: 1.67586180846898 x3: 1.19942316545143

5 years 前 | 0

已回答
Non linear system of equations
multi-solutions: 1: x1 0.00357502545408908 x2 1.88403841412371 x3 3.32997281546349E-5 x4 2.49981876993596E-6 x5 2.40013395...

5 years 前 | 1

已回答
Fsolve Error! Need help- Using Fsolve to solve system of non-linear equations.
Hi， your equations seems to be Contradictory: "nc*(t1-t2)-(t1-x5)" lead to x5=381.7598 while "x5-(2.5^(.28571429)*t1)" lead t...

5 years 前 | 0

已回答
How to solve a non-linear equation system as function handle with fsolve?
Multi-results: 1: q1: 2.96669036114669 q2: 1.70487333682449 q3: 15.5136953998108 q4: 5.27144773940526 q5: 0.14218964199662...

5 years 前 | 0