Matt J

Matt J

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Professional Interests

medical image processing, optimization algorithms

Reputation

5546
76% accept rate
1074 accepted answers
1answer
0 votes

Bad results of lsqnonlin

Asked by samar about 7 hours ago
Latest activity Edited by Matt J about 5 hours ago
2answers
1 vote

Potential spam auto-detector

Asked by Matt J on 26 Sep 2014 at 4:29
Latest activity Edited by John D'Errico about 10 hours ago
1answer
0 votes

Display resnorm at each iteration of lsqcurvefit?

Asked by Marc on 29 Sep 2014 at 23:49
Latest activity Commented on by Matt J about 10 hours ago
2answers
0 votes

Matlab Optimization Toolbox value selection

Asked by Vinit Menon on 26 Sep 2014 at 20:48
Latest activity Commented on by Alan Weiss about 11 hours ago
1answer
0 votes

How to find minimum and maximum of a fitted curve.??

Asked by Chris Martin on 29 Sep 2014 at 15:00
Latest activity Edited by Matt J about 13 hours ago
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1answer
0 votes

How can put eigenvalues in ascending order?

Asked by Anderson Duraes on 29 Sep 2014 at 21:22
Latest activity Edited by Matt J on 29 Sep 2014 at 21:44
1answer
0 votes

Show an expression on each iteration of the optimization

Asked by Jurgen on 29 Sep 2014 at 16:32
Latest activity Edited by Matt J on 29 Sep 2014 at 18:33
3answers
0 votes

is there an alternate function for region props

Asked by Lorenzo Chatterpal on 27 Sep 2014 at 17:56
Latest activity Edited by Matt J on 29 Sep 2014 at 14:15
1answer
0 votes

Direct 2D FFT from sinogram. Polar to cartesian grid interpolation in Matlab

Asked by Dimitar on 29 Sep 2014 at 13:44
Latest activity Commented on by Matt J on 29 Sep 2014 at 14:04
0answers
0 votes

fmincon finds solutions close to the middle of the range

Asked by muly san on 29 Sep 2014 at 12:18
Latest activity Commented on by Matt J on 29 Sep 2014 at 13:09
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1answer
0 votes

No feasible solution in seasonal ARIMA process

Asked by MC3105 on 28 Sep 2014 at 10:48
Latest activity Edited by Matt J on 28 Sep 2014 at 14:05
1answer
0 votes

finding max value in a matrix

Asked by AA on 28 Sep 2014 at 11:49
Latest activity Edited by Guillaume on 28 Sep 2014 at 13:05
1answer
0 votes

I need help with optimization problem

Asked by Merve on 27 Sep 2014 at 10:42
Latest activity Edited by Matt J on 27 Sep 2014 at 13:28
1answer
0 votes

Vector convergence in cartesian coordinates

Asked by Yasmine Tamimi on 25 Sep 2014 at 19:03
Latest activity Edited by Yasmine Tamimi on 27 Sep 2014 at 6:18
2answers
0 votes

least squares fit for a histogram

Asked by Katelyn on 26 Sep 2014 at 3:38
Latest activity Commented on by Matt J on 26 Sep 2014 at 23:16
1answer
0 votes

using "solve" for a system of nonlinear equations

Asked by Sayed on 25 Sep 2014 at 22:13
Latest activity Commented on by Matt J on 26 Sep 2014 at 21:45
2answers
0 votes
1answer
0 votes

Warning of complex arguments and Armijo failure?

Asked by Uday padidela on 22 Sep 2014 at 7:44
Latest activity Commented on by Matt J on 25 Sep 2014 at 11:51
3answers
0 votes

Using fminsearch to estimate utility function with MLE

Asked by Tobias on 15 Sep 2014 at 13:15
Latest activity Answered by Tobias on 25 Sep 2014 at 8:41
3answers
0 votes

how to calculate the variance between columns of matrices

Asked by A on 22 Sep 2014 at 9:48
Latest activity Answered by Guillaume on 25 Sep 2014 at 6:17
1answer
0 votes

nonlinear curve fitting: how to add an extra data vector?

Asked by Ramirez on 24 Sep 2014 at 2:47
Latest activity Commented on by Matt J on 25 Sep 2014 at 3:27
3answers
0 votes

How can i replace this code to fast up?

Asked by subha on 5 Aug 2014
Latest activity Edited by subha on 25 Sep 2014 at 3:04
0answers
0 votes

Image artifact using imagesc

Asked by Jonathan on 20 Sep 2014 at 16:38
Latest activity Edited by Matt J on 24 Sep 2014 at 21:33
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0answers
0 votes

Cannot display summaries of variables with more than 524288 elements.

Asked by sophia on 24 Sep 2014 at 20:34
Latest activity Commented on by José-Luis on 24 Sep 2014 at 21:08
0answers
0 votes

Error using .* in MATLAB

Asked by sophia on 24 Sep 2014 at 19:42
Latest activity Edited by dpb on 24 Sep 2014 at 23:44
1answer
0 votes

using fsolve for solving a set of nonlinear equations

Asked by Sayed on 24 Sep 2014 at 13:22
Latest activity Edited by Matt J on 24 Sep 2014 at 19:40
1answer
0 votes

Easy convolution of multiple vectors

Asked by Daniel on 23 Sep 2014 at 20:38
Latest activity Commented on by Matt J on 23 Sep 2014 at 22:15
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3answers
0 votes

how to do a conditionnal mean

Asked by alex monjambo on 23 Sep 2014 at 20:04
Latest activity Commented on by alex monjambo on 23 Sep 2014 at 21:22
2answers
0 votes

Why is the polyval command giving two different answers?

Asked by Baldemy on 22 Sep 2014 at 17:33
Latest activity Commented on by Matt J on 23 Sep 2014 at 15:51
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1answer
0 votes
1answer
0 votes

Desperate help for using the B-spline function !!!

Asked by Panty on 21 Sep 2014 at 16:20
Latest activity Commented on by Panty on 22 Sep 2014 at 19:43
0answers
3 votes

Why is m-function overhead 100 times more than built-in overhead.

Asked by SK on 19 Sep 2014 at 18:11
Latest activity Commented on by SK on 22 Sep 2014 at 19:20
1answer
0 votes

optimization procedure convergence and "norm of step"

Asked by Matthew on 18 Sep 2014 at 19:40
Latest activity Answered by Alan Weiss on 22 Sep 2014 at 18:06
1answer
0 votes
2answers
0 votes
1answer
0 votes
1answer
0 votes

program to create matrix obeying constraints

Asked by reshdev on 20 Sep 2014 at 1:27
Latest activity Commented on by Matt J on 20 Sep 2014 at 19:57
2answers
0 votes
1answer
0 votes

Curve fitting a complex function

Asked by Christos on 19 Sep 2014 at 15:43
Latest activity Commented on by Matt J on 19 Sep 2014 at 17:37
1answer
0 votes
2answers
1 vote

How to specify limits for lsqnonlin

Asked by Stine Larsen on 18 Sep 2014 at 9:00
Latest activity Commented on by Matt J on 19 Sep 2014 at 14:24
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1answer
0 votes

Using fminunc with a summation

Asked by Nila on 12 Sep 2014 at 16:40
Latest activity Edited by Matt J on 18 Sep 2014 at 17:40
2answers
0 votes

Multiplying rows of matrix without bsxfun or for loops

Asked by Krunal on 18 Sep 2014 at 12:46
Latest activity Edited by Matt J on 18 Sep 2014 at 17:36
1answer
0 votes

Where is the 'constr' function located?

Asked by Thomas Mansencal on 18 Sep 2014 at 13:52
Latest activity Commented on by Matt J on 18 Sep 2014 at 14:16
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1answer
1 vote

Peculiar behavior of lookfor

Asked by dpb on 17 Sep 2014 at 20:05
Latest activity Commented on by dpb on 18 Sep 2014 at 2:04
1answer
0 votes

how to use fminunc to get Hessian matrix

Asked by Sophia on 2 Sep 2014 at 0:59
Latest activity Edited by Sophia on 17 Sep 2014 at 22:17
3answers
0 votes
0answers
0 votes

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